Adopts premium TPU, PET and PC materials with 360 degrees all-inclusive design, which protects your tablet from scratches, shocks, and other daily damage as well. Exceeding the IP68 waterproof rating, this case is with a precise 100% waterproof effect and is suitable for daily use, surfing, swimming, cycling, diving, snorkeling and etc. Waterproof: Pass the IP68 waterproof rating test, submersible to 2 meters deep, which can completely isolate the tablet from dust, snow, ice and water Anti-drop: 2m/6.6ft drop resistance, the high-quality impact-resistant PC, soft-touch TPU bumper provides a 360 all-round protection The PC+PET front cover is wear-resistant, scratch-resistant, and drop-resistant. With sensitive touch, it will not affect any function of the touch screen at all The TPU+PC back cover protects for iPad from scratches, and is easy to install Installation method: 1. Put the waterproof case (do not put the device in the waterproof case first) in the water, make sure no leakage, and then put the tablet into the waterproof case 2. Install the waterproof case correctly 3. Make sure all holes and openings are sealed 4. After installing the waterproof case, if it falls to the ground, please check for cracks and tightness