【Sturdy Non-Slip Design】:Super crab clamp and ball head are aluminum alloy material construction,sturdy,durable, anti-rust,anti-corrosion design be used for outdoors.Jaw equipped with 2 anti-skid rubbers cases,non-slip,increased friction,reduced scratching,holds pole firmly,more stable and secure. | 【360°Adjustment】: One 0.669 inch / 17 mm aluminum alloy ball head of tablet bracket, allowing you to adjust angle of device according to your viewing freedom,you can twist tablet clamp to change any directions,operation is very simple and relax, the 360°adjustment design provides the best angle for you,ABS material tablet clamp feet built-in anti-skid rubber pad and stainless rod,it can hold your devices firmly during rotation. | 【Boat Handlebar Mount】:This tablet mount is special designed for boat cockpit helm,pole and railing rod, the jaw clamped maximum diameter is 1.7 inch /44mm,fit for different various of type boats (marine boat,sailboat,cruise ships,passenger ships,fishing boat,tourist boat,sightseeing boat),also recommend for using indoors( spin bike,treadmill,stationary bike,microphone stand,wheelchair). | 【Boat Recreation】: You have a trip when on the boat or ship, this tablet stand is a great helper for you to pass time, you can clamp the pole or railings to watching TV,listening to music,play games,video chatting, GPS navigation and so on. | 【Compatible】: Tablet clamp can be pulled up and pulled down different sizes to compatible with all 4.7~12.9 inches tablets:iPad Air 2/3/4/5/6,iPad mini 2/3/4/5/6/,iPad Pro 9.3/10.5/11,iPad2019/2020/2021,Google Nexus 7/8/9/10/11,LG G Pads/7.0/8.0/ 8.3,e-Reader,GPS.Phones: iPhone 13/13 Pro/13 Max/13 Pro Max/Mini, iPhone12/12Pro/Max/12ProMax/Mini,iPhone 11/11 Pro/ XS/XS Max/XR,iPhone8/8Plus/X/7Plus/7/6s Plus/6s/6 Plus/6/5/5s.