This is a Transparent Waterproof Housing Case, which is specially designed & compatible for DJI Osmo Pocket Action camera. With this waterproof housing case you can perfectly use the camera underwater High transparent material can keep a good photo shooting. The two sides of the lens are respectively coated with an optical film, a waterproof film, and high light transmittance plating. The pressure of surfing with this waterproof shell does not affect your movement and photography. Each Screw & Button on the product is made of 316 Stainless Steel, so when you use it under the water it will not be corroded by the seawater.