Features layers of foam for customer customization and padlock holes with stainless steel protector clips for added strength. SKB iSeries Injection Molded Mil-Standard Waterproof Cases are molded of ultra high-strength polypropylene copolymer resin, and feature a gasket sealed, water and dust tight, submersible design (MIL-C-4150J) that is resistant to corrosion and impact damage. Standard features also include a molded-in hinge, patented trigger release latch system, comfortable, snap-down rubber over-molded cushion grip handles, automatic ambient pressure equalization valve (MIL-STD-648C), and resistance to UV, solvents, and fungus (MIL-STD-810F). Interior dimensions: 91,44 x 34,29 x 30,48 cm.