Glass Lens Kit Cover Lens Waterproof Housing for GoPro HD Hero 2 Hero 1 This waterproof shell lens is used in waterproof shell,it allows you to use your GoPro in the water without damaging it. Inserted this cover lens in front of your lens when inside of the waterproof housing,you can get best waterproof effect. Double-sided optics and waterproof coating can ensure high transmittance. Coming with sealing rubber rings and screws,it is easy to install. Glass lens cover for GoPro underwater waterproof housing.