Like all of the SKB 3I Series Injection Molded Mil-Standard Waterproof Cases, the 3i-0907-6B features an ultra high-strength polypropylene copolymer resin molding, and a gasketed, water and dust tight, submersible design (MIL-C-4150J) resistant to corrosion and impact damage. It also has a continuous molded-in hinge; trigger release latch system; comfortable, snap-down, rubber over-molded cushion grip handle; automatic ambient pressure equalization valve (MIL-STD-648C); and is resistant to UV, solvents, corrosion, fungus, and impact damage (MIL-STD-810F).