1. Perfect protection. The inner frame adopts high elastic rubber ring, which can withstand strong pressure and the seal without leakage. 2. High safety. The hard shell can effectively protect the camera even in complex underwater environments. 3. Highly transparent PC material. Improve the texture, the transmittance is as high as 95%. When watching the playback, the color display on both sides of the screen is still clear and gorgeous. 4. Show the texture of . The lens is made of tempered glass, which is not easy to scratch, while still maintaining good-quality effects. 5. Precise alignment and solid materials. The buttons are made of 316 marine-grade stainless steel, the bare buttons are precisely aligned, and the tactile feedback is obvious. Effective anti-fog, smoother . Comes with anti-fog cotton sheets to effectively prevent fogging caused by temperature difference. How to use: Three steps to done: 1. Find the buckle to open the camera shell. 2. Put the camera into the camera case and tighten the screws. 3. Put on the back cover and gently to lock the camera case. Waterproof case size: 80 x 50mm Waterproof case net weight: 83.5g Applicable models: for Action 3/4/5 Precautions: 1. Please check the integrity of the product components before use; 2. Please check whether the back door rubber ring is in the correct position before use, and make sure there are no obvious impurities on the rubber ring; 3. Before going into the water, please make sure that the waterproof back door is closed correctly and the lock is tightened; 4. Please rinse the shell with clean water after use to avoid long-term seawater erosion; 5. The product should be stored in a cool, ventilated and dry place, and the storage temperature should not be her than 40 degrees. Color: Black & Transparent Material: PC+306 Stainless Steel+Tempered Glass Package Contents: 1set * waterproof cases suitable for 3, 4, and 5 Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.