Feature: 1. Deep Waterproof: This product uses the waterproof layer made of aluminum alloy shell and high density tempered glass, which can achieve the effect of 40m deep waterproof, so that your camera can still be used after being placed in the water. 2. One Piece Design: The bottom of the protective shell is equipped with 2 pin fixed mount and screw hole, which optimizes the structure and is convenient for users to install and use. 3. High Stability: This product uses a unique lock design to firmly lock the waterproof shell and prevent damage to the camera caused by loose lock. 4. Equipped With: The lens of waterproof shell is made of imported high permeability tempered glass. After 20 hours of extremely cold and hot tempered treatment, the lens hardness is up to 9H; The equipped Cold Shoe mouth can meet different shooting needs, and can be connected to the microphone of the light compensation range. 5. Design For: The protective shell is small in size and light in weight; It is suitable for Gopro11 10 9, and allows the camera to be used freely underwater without fear of damage. Specification: Item Type: Protective Housing Product Material: Aluminum alloy tempered glass Applicable Model: for Hero 9 10 11 Weight: 228.00g/8.04oz . Package List: 1 x Protective Housing1 x Adapter1 x Long Screw