The iSeries of waterproof cases are the perfect solution for storing and transporting your delicate electronics, microphones, mixers, cables, video, and photography equipment. Most sizes are available with a variety of interiors. Interior options on most models include cubed foam, layered foam, padded dividers, or an empty interior.3I Series 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, comfortable, snap-down rubber over-molded cushion grip handle, secure stacking, and automatic ambient pressure equalization valve (MIL-STD-648C) all contribute to its military grade design.