The VJD is manufactured from double laminated PVC and has an optical glass port. It is rated to 10 meters underwater. Perfect for snorkeling or shallow diving, sandy, dusty, humid or foul weather conditions this housing will give your camera the best possible protection whilst being fully operable. It has a pair of non-corrosive and seawater resistant clamping rails which fit together for perfect sealing. They tighten by means of knurled thumb screw knobs. The straps at the bottom allow weights to be attached for perfect buoyancy under water. It is supplied in a handy yellow carry-case which has a water-proof interior and zippered side-pocket.