Ewa Marine, the ORIGINAL Underwater Housing manufacturer has been an industry innovator, trusted by organizations including Disney, and the U.S. Military to protect their photography and video equipment for over 45 years. The Ewa-Marine SplashiX Underwater Small Housing comes with an HD-quality, optical glass front port, to ensure that you can get perfect quality pictures. It is manufactured from double laminated PVC. Because of the extremely light weight and easy to use, you can protect your own digital camera perfect from water, sand, dust and humidity. It doesn't matter if you go snorkeling (up to 6m / 20ft depth), on the beach, in the desert, heavy rain, rafting or sailing. It has a pair of non-corrosive and seawater resistant clamping rails which fit together for perfect sealing. They tighten by means of two screw knobs.