✪Levelling base LB-68 is one levelling tool in panoramic system, working with the tripod for landscape shooting to exquisitely level, especially ideal for outdoors shooting on bumpy roads. | ✪Strong and durable: All-metal structure, T6061 aero-space grade aluminum main body material, light yet strong, easy to carry; Elaborately CNC machined, hard-anodized finish ensures it’s resistant to abrasion and corrosion; | ✪Ultra-big load capacity: Hemisphere design, maximized contact area with the base for bigger load capacity compared with other ballheads. Suitable for panoramic stitching system, and heavy equipment like video camera. Max load capacity of 10 KG; | ✪Smooth operation: Exquisitely CNC machined to make sure the base of the hemisphere is perfectly fit with the base, and use professional damping oil for its smooth and easy operation; | ✪Safe and steady: The overall height of LB-68 is only 39mm, with low gravity center, very steady and safe. Compatible with equipment of high gravity center, such as 6x6, 6x7 medium format camera or view camera. | External bubble level provides easy reading after camera being loaded.

MIDDLE ATLANTIC SF2 2SP SECURITY PANEL

BT50

QUALITY: High-quality glass featuring ZEISS T* anti-reflective coating | FLEXIBILITY: High-fit accuracy for fast filter change. Can be used with a lens shade | COMPATIBILITY: Ideal for ZEISS lenses. Can be used with non-ZEISS lenses | EFFECT: Optimal protection of the front lens element and more clarity for your photograph

MB-MC512GA_EU

GOBE IS NOW URTH | We changed our name to better reflect what we’re working to protect. To find the equivalent Urth product, search code B088C2DX4M | VERSATILE | Rotating ring between ND2 and ND400 giving great versatility in changing light. Reduces light intake from 1 to 8.66 f-stops without affecting colour balance. Great for landscape photography and videography. | GOBE 1PEAK | Premium Japanese optical glass with 8-layer nano-coating provides neutral colour balance, reduces lens flare, and removes ghosting. Backed by our lifetime warranty. | CONTROL UNPREDICTABLE LIGHT | Variable light reduction eliminates washed-out images and allows long exposure and motion blur techniques in variable light - use slow shutter speeds and wide-open apertures without overexposing your images. | CONSIDERATIONS | This Variable ND filter is not recommended for use with wide-angle and telephoto lenses. Please note: Do not rotate past the MAX marking on the rim to avoid unwanted effects. You need to use a larger lens cap or hood with this filter.

A two-part system that creates on seamless glassing experience, the Pro Binocular Adapter combines an incredibly sleek form factor with a fast, stable mount to keep you on the move. | Compatible with tripod-adaptable binoculars and tripods with a 1/4"-20 socket/thread.

【Variable ND2-32ND & CPL Filter】One filter both has a light reduction effect and also can enhance the color and contrast. The variable neutral density filter reduces 1-5 stops of light. The CPL Function can remove unwanted glares from a non-metallic surface. Strongest effect when used at a 90° angle from the sun. | 【Ultra definition imaging】 The true color variable ND filter solved the common problem of partial yellow and color shift, showing the true color of the image and video. When the light goes through the filter, it won’t be affected by the coating and there's no color cast, even in long exposure mode. Our filters will not cause X shadow or vignetting in most usage scenarios. Please read the product instructions carefully or just contact with us if you have any question. | 【Optical Glass with Nano Coating】Made by importing ultra-white optical glass, double side 30 multi-layer coatings, the reflectivity can reach less than 0.15% to reduce flare and ghosting. Protect the filter from water, oil, dust, and scratches. | 【Aircraft Grade Aluminum Frame】Filter frame is made of aircraft grade aluminum alloy frame. It screws easily into the camera. The CNC precisely machining knurling on the mounting ring makes it easy to get snug enough to not spin off while adjusting the ND/CPL function. Simply rotate the putter to adjust from ND2 to ND32 on the frame, convenient to be sure the ND filter stops. | 【NOTE】Please verify your camera's lens thread size before ordering. Searching your lens and find the diameter symbol "Ø" followed by a number, this usually can be found on the front or side of your lens, or printed underneath the front lens cap-this magic number is your filter size. We have checked all the filters before send them out. If you fee unsatisfied in any way, please email us. We will provide you with satisfactory solutions.

【Magnetic 1 Second Swap】This magnetic variable ND2-ND32 filter with magnetic technology, install the magnetic filter adapter ring on the lens first, then the filter can be absorbed in 1 second, faster installation than traditional thread filter (6s). | 【Frame Self-Lock, No "X" Cross】Say goodbye to the dark "X" cross on images, K&F Concept utilizes cutting-edge technology (frame self-lock) to avoid the common "X" cross on a wide-angle and telephoto lens. | 【High Definition Image, No Color Cast】Made by importing Japanese AGC optical glass, no effect on the color balance, ensures the high definition image quality. Support 1-5 stops adjustable to control the amount of light entering the lens to reach the light reduction effect in different stops. | 【Waterproof & Scratch Resistant Coated】Both sides of the glass with nanometer coating (a total of 28 layers) are waterproof, scratch-resistant, and anti-glaring, effectively protecting the valued camera lens and presenting high-quality photos. | 【Note】Package including: 1* ND2-ND32 filter + 1* Magnetic Basic ring. This filter kit is compatible with all 62mm lenses. Please verified the lens size before ordering. The number is always preceded by a "ø" (diameter) symbol.

Industry leading, professional All Weather Clapperboard kit, the same brand used by 2nd AC and Clapper Loaders on Motion Picture Film and TV sets | Both the clapper sticks and acrylic board are made from ABS Resin, making this industry standard clapperboard durable in all types of weather | Designed with a tongue and groove insert to allow for gripping marking tape when measuring distance, prevents light from coming through the sticks when in a closed position, and reduces side to side shifting on the sticks. | Mark each acrylic slate with information for each scene including, Scene, Take, Roll, Director, DOP (Director of Photography) & Date

To Fit: For All Hasselblad 500/200/1000/2000 series, such as 1000F 1600F 500C 500CM 501CM 503CW 203FE 2000FC 503CX 500ELX 553ELX 205FCC 202FA 905SWC...etc. | Genuine Leather and Steel lugs - 3mm thickness leather and heavy-duty stainless less lugs to ensure the safety of your favorite camera. | Wine Red Color - Give your vintage camera a eye-catching looking and bring you a new photography experience. | Size: 0.49in x0.12in x 38.28in (1.25cm x 0.3cm x 98cm) | Package: 1x Leather Strap | Warranty: one year

Heliopan’s premier Close-Up +2 Filter is the most practical and affordable method of macro photography. This progressive convex lens design and +2 dioptric strength shortens the distance between shooter and subject; allowing intimate close-ups with optical clarity. The front and rear surfaces of the Close-Up Filter both feature a special coating to neutralize reflections and increase color saturation without offsetting overall color and tone. This results in a well-balanced and robust image, which is a must for any sensible photographer | Our standard 8-Layer Multi-Coating minimizes reflections and does not interfere with the resolution of your camera optics | Constructed from the highest German Schott Optics, which guarantees incredible optical resolution. Our glass is specially ground and polished to minimize internal reflections, while ensuring that the quality of your images are not degraded by using our optics in front of your lens. It is also specially hardened to resist most impacts | Our precision cut brass ring ensures a secure and sturdy fit, are more resistant to side impacts, and less likely to bind or cross-thread after extended use | We do not source any materials outside of Germany in the assembly and construction of our products. All raw materials are prepared and hand-assembled in our factory and do not leave our facility until they are completely inspected by our quality technicians

Can be kept on your camera at all times Warm UV-17 * * Absorbs slightly less UV light than Haze 2A. | Protects your camera or camcorder lens against dust, moisture, fingerprints, scratches and damage. | For the technically-minded image maker who wants to absorb most but not all UV light. | High quality optical glass. | High Quality Metal mounting ring.

🚗【Function】7 Solid Color Settings will meet your requirement. You can switch color of light you like-Colors Include Blue, Red, Green, Teal, Purple, White & Yellow. | 🧭【Material】The GPS speedometer is made of Stainless Steel 316L Bezel and Anti-fog Glass. IP67 waterproof and dustproof grade. The boat GPS speedometer Install for 85mm(3 3/8"). Indicating range: 0-80MPH. | 🚢【Wide Applicability】Suitable for all vehicles Car/ Marine/ Boat/Truck/Bus/Motorcycle and off-road vehicles. It gets quicker under a clear view of the sky. The signal comes directly from the satellite signal receiver(GPS Antenna), don't need other speed sensor. | ✅【Stability】The marine GPS speedometer gauge has the advantages of high precision, quick location confirmation and short start up time. | ⭐⭐⭐⭐⭐［After-Sale Guarantee］Included 1x GPS speedometer, 1x GPS Antenna, 1 x Wire Harness, 1x Installation Instruction. Please contact us if you are dissatisfied with our products, the response will be taken in 24 hours and provide proper solutions.

In evening glow or morning glow,or under a white incandescent lamplight appears reddish. | To correct this use filter | Use a blue filter to raise the color temperature.

【6-Way Conference Intercom & Universal Pairing】The FreedConn T-Max pro motorcycle bluetooth headset share the riding experience and enjoy conversation with up to 6 riders talk at one time at an intercom range of 1200 meters. Universal pairing feature, compatible with most of the Bluetooth headsets or earpiece in the market. | 【Hands-free Speaker & Hi-Fi Stereo Sound Quality】 The FreedConn T-Max pro motorcycle helmet bluetooth provides easy hands-free communications for you while riding. And it featured Bluetooth 5.0 with access to Siri and S Voice commands, you can call or answer hands-free calls, listen to the best Hi-Fi stereo music, FM radio or listen to GPS voice guidance. | 【Music Sharing & Noise Cancelling】This helmet bluetooth headset featured music sharing that allows two riders enjoy the same song during their trip. And it also functions well for speeds up to 120km/h with DSP& CVC advanced noise cancellation technology. | 【Exchangeable Microphone & Great Helmet Compatibility】 The FreedConn T-Max pro motorcycle intercom has two interchangeable microphones - allows you the choice between a boom microphone for open face or flip-face (convertible) helmets, or a button microphone for full face helmets. | 【IP65 Waterproof Design & Long Battery Life】 The FreedConn T-Max pro helmet communication systems featured IP67 waterproof tecnology can handle all weather conditions even work. This motorcycle bluetooth headset has a standby time of up to 300 hours, an intercom time of up to 17 hours, and a full charge of only about 2.5 hours. (Can be used while charging)

Designed with a 3 octave spread between crossover points | Metallized polyester film capacitors are used in the critical midrange and tweeter signal paths | Low-pass section allows for the use of 4 or 8 ohm woofers

Catalog Publishing Type - Print Servers/Network Cards-Standard | Connector/Port/Interface - RJ-45 | Global Product Type - Print Servers/Network Cards | Height - 1.20 in

Designed to prevent unwanted stray light from entering the lens | Constructed from high quality plastic | Keeps debris and moisture from the lens for optimum image quality | 1 x HB-78 Lens Hood AFS 70-200 f2.8E FL ED VR

Made of 6061-T6 CNC machined aluminum with a black hard anodized finish | Toad (male adapter) precisely mounted on ‘’ Toad In The Hole Quick Release’’ which allows for quick movement of the gimbal from one setup to the other. | 3/8’’-16 female threaded on the bottom designed for easy mounting on any grip equipment comes with 3/8’’-16 male threaded stud | Provides a great mounting solution for the gimbal on a light stand, suction cups and a variety of grip equipment.

Offers all the benefits of the Pro-Mist filter in a more subtle form. | Highlight flares are controlled. | Contrast is lowered, but with less lightening of shadows for a more delicate effect | Creates a soft light "pastel" effect | Delicate effect with contained highlight flare

Black Knurled Filter Mount for Better Grip | MRC Coating to Control Flare & Ghosting | New QR Code included to Verify Authenticity | Good for down to 24mm Full Frame Format | ECO-Friendly Packaging

Removes Reflections And Increases Color Saturation Without Affecting The Overall Color Balance | Brass Is Used To Make Most Of The Rings For The Filters And Adapter Rings. Aluminum Is Used For The Rigid Lens Hoods Like The telephoto Metal Lens Shades. For The Rubber Lens Hoods A Special Rubber Mixture Is Used | Filter Factor: Between 2.3 And 2.8 (Approx. +1.3 Stops)

【Imported AGC Glass】Variable nd filter made by importing AGC glass, first-class filter material balancing the color batter, with no color cast and no effect for the image clarity and sharpness. | 【Self-Lock Frame, No 'X’ cross】Say goodbye to the "X" cross on images, K&F Concept utilizes cutting-edge technology to perfectly avoid the common "X" issue of variable nd filter on wide-angle and telephoto lenses. | 【NANOTEC】K&F Concept optical engineers developed multi-layer nanometer coatings (total of 28), waterproof, scratch-resistant, and anti-glaring, protecting the valued lens and presenting high-quality photos. | 【Ultra Slim Frame Avoid Vignetting】7.4mm Ultra-slim frame design utmost avoid the wide-angle vignetting (support 28mm focal length no vignetting). CNC-non-slip design helps install and remove the filter easily. | 【NOTE】This filter kit is compatible with all 67mm lenses. Please verify your camera's lens thread size before ordering. The number is always preceded by a "ø" (diameter) symbol. For the 67mm nd filter, the lens cap/hood size should be 72mm. | New and old packages are sent randomly

【Variable ND & CPL Filter】After adjusting the ND filter and then rotating the frame, you can realize the functions of the ND filter and the CPL filter simultaneously. This 2 in 1 filter kit allows you to shoot under bright lighting conditions to capture motion blur images. It reduces reflections and glare from shiny objects like water or glass. The variable neutral density filter reduces 1-5 stops of light | 【No Dark Cross Shadow】To solve the well known vignetting issue with variable ND filters when used on wide angle lenses, the NEEWER filter set uses self locking technology to ensure that there will be no dark cross shadow or vignetting when shooting with wide angle lens | 【HD Optical Glass with Multiple Resistant Coatings】 With high quality HD optical glass and 30 layers of nano coatings on the both side of the filters, the reflectivity can reach less than 0.1% to reduce flare and ghosting. Protect the filter from water, oil, dust, and scratches | 【Aircraft Grade Aluminum Alloy Frame】 Made of CNC machined aluminum alloy, the non slip texture of the frame makes it easy to install and remove the filter. Laser etched marks can be precisely controlled from the minimum (ND2) to the maximum (ND32) of light reduction. Featuring ultra slim design, the front diameter is larger than the back diameter of this filter. For this 55mm ND filter, the lens cap/hood should be 62mm | 【Compatibility】 Compatible with all lenses with a 55mm thread size. Please confirm your lens thread size before purchasing. The thread size is marked on the front or side of your lens, next to a "Ф" (diameter) symbol

STRONG & SECURE: TetherTies Coil tether cable provides the same security as our other models, but are neatly coiled . Made from high grade galvanized stainless steel and coated with PVC. TetherTiesHD have a 270 lb minimum break strength, for added security and theft deterrence. | FULLY ASSEMBLED: TetherTies ship fully assembled and ready to use, install tether cables in less than a minute. Plus receive a free crimping tool required for installation. | FAST & EASY: Install the tether cables permanently in less than 1 minute, extremely convenient way of securing and deterring theft of computers, displays and adapters. | ELEGANT DESIGN: TetherTies are elegantly designed to function, ideal for work environments that require securing equipment and preventing unintended removal. | MADE IN THE USA: Tether cables are proudly made in the USA, from high grade flexible stainless steel. TetherTies feature a tamper resistant design to reduce the chance of loss or theft.

Heliopan’s premier 52mm Medium Yellow Glass Filter is primarily used to bump up contrast and tonality on black and white films. The standard strength of the 3 contrast filters Heliopan offers; the Medium Yellow Filter slightly darkens skies, helps cut through haze, and increases overall contrast. It is the most common contrast filter used for black and white photography, producing an accurate tonal range and compensating for blue sensitivity of panchromatic film. | Constructed from the highest German Schott Optics, which guarantees incredible optical resolution. Our glass is specially ground and polished to minimize internal reflections, while ensuring that the quality of your images are not degraded by using our optics in front of your lens. It is also specially hardened to resist most impacts. | Our standard 8-Layer Multi-Coating minimizes reflections and does not interfere with the resolution of your camera optics. | Our precision cut brass ring ensures a secure and sturdy fit, are more resistant to side impacts, and less likely to bind or cross-thread after extended use. | We do not source any materials outside of Germany in the assembly and construction of our products. All raw materials are prepared and hand-assembled in our factory and do not leave our facility until they are completely inspected by our quality technicians.

The Package Length of the Product is 10.668 centimeters | The Package Width of the Product is 8.382 centimeters | The Package Height of the Product is 1.524 centimeters | Country of Origin: UNITED STATES

If you use Wide lens camera, we recommend PRO1D Wide Band C-PL(W) or C-PL(W) VERNIER | This is for AF function camera and a camera with a Half mirror at the light-measuring function . | This filter is suitable for over 35mm telephoto lens .

COMMON FORMAT: Formatted with the standard 26-bit H10301 format used on most access control security systems. This is the most common format for 26 bit readers. COMPATIBLE: This card reader works with the same 26 bit weigand readers that both the 1386 ISOProx and 1326 ISOProx key cards work with. Compatible 125khz card readers include: Proxpoint Plus, Thinline II, MiniProx, RP40, RP10, RPK40, RP15, Prox80, ProxPro, EntryProx 4045, Bosch ARD-AYJ12, Viking PRX-2, and many more. | DIMENSIONS: Mullion mount reader 4” X 1 7/8” X 3/4” (10cm X 4.5cm X 1.8cm) | LONG WIRE PIGTAIL: Long 14 inch (36 cm) wire harness containing 6 shielded 22 gauge wires. | INSTALLATION: mounting plate makes for easy installation. Same standard wiring as other leading card readers. Installation instructions included. Technical support available for questions regarding installation. | WEATHER RESISTANT: With an outdoor rating of IP68 you can be confident this reader can withstand all outdoor conditions.

HEAVY DUTY PROTECTION - TetherTies HD are made from high grade galvanized stainless steel and coated with PVC allowing for a 270 lb minimum break strength. Secure almost any cable or video adapter to its host cable to eliminate the risk of lost dongles. Our tamper-resistant design and heavy duty strength material further prevents the accidental or intentional theft of your valuable peripherals. | TIME EFFECTIVE - Not only do TetherTies install quickly and easily, but by using by using TetherTies, your IT staff won't be constantly called out to conference rooms and meetings to replace dongles, giving them time back to tackle more important tasks | BUDGET FRIENDLY - Keep your dongles secure with a strong and effective TetherTie - a trusted solution which costs less than 5% of the average dongle replacement price. Think of TetherTies as your technology insurance policy, so you can avoid having to buy new cables and adapters every time they're misplaced or "accidentally" stolen from your office or workspace. | AMERICAN-MADE QUALITY - TetherTies are made of USA high-quality, flexible, stainless-steel, nylon-coated wire cable that's been tested for strength. They are the most widely used and trusted solution available to keep your computer, adapters, and dongles secure with a durable yet minimalist design. Our quality can't be beat, and our large customer base of top Fortune 500 companies speaks to our reliability. | A VARIETY OF SOLUTIONS - We help secure all types of cables, HDMI dongles, adapters, remotes, tools and equipment in and outside of the office. Whether you need to keep tongs in the kitchen, bluetooth speakers in your hotel rooms, or stethoscopes by your patients' bedsides, TetherTies is the most trusted solution on the market, with different styles of tethers to fit your every need.

Single coatings on both the front and rear offer protection to the glass and help to improve light transmission and image quality. | Constructed from Schott glass for optical clarity. | Brass filter ring helps to prevent jamming and provides additional strength.

Heliopan’s premier 52mm Dark Yellow Glass Filter is primarily used to heavily, bump up contrast and tonality on black and white films. The strongest of the 3 contrast filters Heliopan offers; the Dark Yellow Filter significantly darkens skies, helps cut through haze, and increases overall contrast. This filter creates an exceptionally robust image and extremely useful for clear contrast between blue sky’s and foreground. Filter Factor: Approximately 4x (+2 Stops). | Constructed from the highest German Schott Optics, which guarantees incredible optical resolution. Our glass is specially ground and polished to minimize internal reflections, while ensuring that the quality of your images are not degraded by using our optics in front of your lens. It is also specially hardened to resist most impacts. | Our standard 8-Layer Multi-Coating minimizes reflections and does not interfere with the resolution of your camera optics. | Our precision cut brass ring ensures a secure and sturdy fit, are more resistant to side impacts, and less likely to bind or cross-thread after extended use. | We do not source any materials outside of Germany in the assembly and construction of our products. All raw materials are prepared and hand-assembled in our factory and do not leave our facility until they are completely inspected by our quality technicians.

Cover simply slides over the lens, and closes with a secure touch fastener | Use with Hoodie for Complete Protection | Compatible with LensCoat cover | Great for Travel and Storage | Made in the USA

Maintains the electronic functions of the lens, including auto-focus and auto-exposure | All metal construction and smooth surface for effortless mounting | No optical insert - maintains lens optical quality | Can combine tubes for various macro ratios | 24 Months Warranty

Universal Super C-Clamp with 1/4"& 3/8" Mounting Points (Extended Edition) - 1/4"-20 Ball Head Holder Support Holder (Black Lock Knob) - CAMVATE 1 Year Limited Warranty | Extended-edition super C clamp, more solid | Mounts via several 1/4"& 3/8" thread holes | Jaw opening ranges from 3mm to 65mm | Effortless to grip or release the super clamp

Connects an Ultra High Definition (UHD) 4K x 2K DisplayPort display to your computer or laptop’s USB 3.0 port, even if the device’s graphics card doesn’t support UHD. Ideal for office workstations and presentations. | Supports UHD video resolutions up to 3840 x 2160 (4K x 2K), video streaming up to 1080p, 5.1 surround sound audio, Displayport 1.2 and USB 3.0 data transfer rates up to 5 Gbps | Add as many as 6 units to add more DisplayPort displays | Compatible with Windows 7 and later, Mac OS X 10.8.5 and later, and Surface tablets running non-RT Windows 8 and later | 3-year limited warranty

RADIO USB READERS: Pyle marine receiver and speaker kit have an AM/FM stereo radio tuning. It also features USB flash and SD memory card readers with aux (3.5mm) input connector jack to connect and stream audio from external devices | LCD AND CONTROL BUTTONS: The in-dash receiver features ID3 that tag song readout for artist name or song title in the LCD digital display panel. It also has an illuminated front panel button controls for rear panel RCA (L/R) and preset equalizer (EQ) | BLUETOOTH AND MICROPHONE: Built-in Bluetooth for wireless music streaming receiver and integrated front-panel microphone for hands-free calling. It is compatible with all of your favorite Bluetooth devices like iPhone, Android, Smartphones, iPad, etc | 2-WAY CONE SPEAKERS: Pyle marine receiver includes two 5.25” speakers with marine grade waterproof construction. The speaker is pack with 4-ohm impedance rating, 20 oz. circuit magnet, 0.75” aluminum voice coil, and 100Hz - 18kHz frequency response | STEREO HEADUNIT: The head unit receiver is pack with single DIN universal size standard at 300 watts power peak that supports USB/SD memory up to 32GB. It measures 178W x 108D x 50H mm in chassis dimension. It also includes all power wiring harness

EVA top cover, shock absorption and compression, provide effective protection for DJI RS 3 and its accessories. | Large capacity, all in one package: can accommodate the main body of the gimbal, the handle extension tripod, the BG21 battery handle, the double-layer quick release plate, the portable adapter handle, the follow focus motor, the follow focus motor accessories, as well as the lens fixing bracket, the follow focus motor Racks, data cables, lens fixing straps, screw sets and other accessories. | Comes with accessories storage bag, say goodbye to messy, neat storage. | Can be hand-held or cross-backed.The length of the shoulder straps can be adjusted freely.

Extra Tall Monitor Mount: Designed with a 39" height adjustable center pole to keep you comfortable and productive while you stand or sit, ergonomically correct position and increase your work efficiency. Please confirm your desk's thickness carefullly before purchasing. | Universal Compatibility Single Monitor Arm: Fits most 13-32 Inch screen, ultra wide screens up to 35 inches and supports weight up to 22lbs. Mounting plates detachable compatible with VESA mounting holes 75x75mm and 100x100mm | Fully Adjustable: Articulating monitor arm offers 180° tilt, 180° swivel, and 360° rotation. The tall monitor mount stand Creates ergonomic viewing angles and optimal screen positioning that help you avoid neck and eye strain as well as shoulder/back. | Two Desk Mount Options: The single monitor arm mount with C-Clamp (for desk thickness up to 3.93" thick) and grommet mount(fits desk thickness up to 2.75") are included for various workstation setup, and integrated cable management system keeps your power organized. | Easy Installation:Mounting your monitor is a simple process. You can install it within 10 minutes according to the instruction manual. We provide all the necessary tools and hardware for easy assembly