The VDT is manufactured from double laminated PVC and has an optical glass port. It is rated to 10 meters underwater. It has been specially made for the camcorders Panasonic GS250 and Canon MVX250, but it will also fit other camcorder of similar size and shape. 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. It is supplied in a handy yellow carry-case which has a water-proof interior and zippered side-pocket.