SKB iSeries Injection Molded Mil-Standard Waterproof Cases are molded of ultra high-strength polypropylene copolymer resin featuring a gasketed water and dust tight submersible design (MIL-C-4150J / IP67) that is resistant to corrosion and impact damage. Features a molded-in hinge patented trigger release latch system comfortable snap-down rubber over-molded cushion grip handle automatic ambient pressure equalization valve (MIL-STD-648C) resistance to UV solvents corrosion fungus and impact damage (MIL-STD-810F).