All of the premium cases in SKB’s iSeries are constructed using a proprietary injection molded blend of ultra high-strength polypropylene copolymer resin, giving the case 2.8 times the strength when compared to cases of a similar class. This construction also gives the iSeries cases outstanding resistance to UV exposer, solvents, corrosion, fungus, and impact damage. Other features of the iSeries cases include a molded-in hinge, stainless steel padlock loops, patented trigger release latches, snap-down rubber over-molded cushion grip handle, and automatic ambient pressure equalization valve. Features of the iSeries Cases: Constructed with a proprietary injection molded blend of ultra high-strength polypropylene copolymer resin 2.8 times the strength when compared to cases of a similar class Resistant to UV exposer, solvents, corrosion, fungus, and impact damage Molded-in hinge Stainless steel padlock loops Patented trigger release latches Snap-down rubber over-molded cushion grip handle Automatic ambient pressure equalization valve SKB iSeries 42"x14" Black AR Case 3i-4214-5B-L