SKB is revolutionizing the industry again with the first INJECTION molded acoustic guitar case! The 3i-4217-30 accommodates most Classical guitars 3i Series injection molded waterproof cases are constructed of ultra high-strength polypropylene copolymer resin and feature a gasketed, waterproof and airtight, submersible design (IP67) that is resistant to corrosion and impact damage. Its continuous molded-in hinge, 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. The plush interior provides total neck support and protection on all sides