TELESIN Waterproof Case Features High Quality: High transmittance transparent back cover and flat glass lens, shockproof thick shell. Compatible: All button settings and sizes are specially designed according to Go Pro Hero 9 Black that provide the best protection. Waterproof?The upgraded water resistance reaches 148ft/45M, added waterproof strap settings, which is very suitable for extreme sports. Integrated design: It is very convenient to install and disassemble by means of buckle fastening. The dive filter set is a must have accessory for anyone using the camera while scuba diving or Snorkeling. It helps the camera capture vibrant tropical colors while filming below 10 feet of water. Because below 10 feet of water the wavelength of red light disappears. The camera white balance does not account for the loss of red light and videos turn very blue or green, lacking bright tropical colors. This dive filter tricks the cameras 'brain' into capturing vibrant colors the way you see them underwater! How to choose the dive filters ? RED FILTER: The red filter is for color correction in blue or tropical water at the depth of 12 to 85 feet. LIGHT RED (SNORKEL) FILTER: The snorkel filter is designed for color correction for blue water or clear fresh water at the shallow depth of 2 to 15 feet. MAGENTA FILTER: The magenta filter helps color correct in fresh water lakes and reservoirs that appears green at depth of 8 to 75 feet. Package Content: 1 x Waterproof Case 1 x Red Filter 1 x Light Red Filter 1 x Magenta Filter 1 x Quick Release Buckle 1 x Screw TELESIN Warranty If for any reason you are unhappy with any product by TELESIN, please do not hesitate to contact our online customer support or email to [email protected]. We take full ownership and responsibility for the quality of our products and will do our very best to solve your problem quickly and efficiently!