SKB is revolutionized the industry with the INJECTION molded acoustic guitar case! The iSeries 4217-18 accommodates most Dreadnought guitars.\n\niSeries injection molded waterproof cases are constructed of ultra high-strength polypropylene copolymer resin and feature a gasketed, waterproof, submersible design (IP67) that is resistant to corrosion and impact damage. Its molded-in hinges, patented "trigger release" latch system with TSA recognized and accepted locks, four reinforced locking loops for customer supplied locks, comfortable, snap-down rubber over-molded cushion grip handles, secure stacking, and automatic ambient pressure equalization valve (MIL-STD-648C) all contribute to its military grade design.\n\nThe platinum plush interior provides total neck support and protection on all sides.