Available in well over 40 configurations, the 3I Series of waterproof cases are the perfect solution for storing and transporting your delicate electronics, A/V equipment, microphones, mixers, cables, computers or percussion and music accessories. Most sizes are available with a variety of interiors to accommodate the needs of the traveling musician. 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 and airtight, submersible design (IP67) that is resistant to corrosion and impact damage. Its continuous molded-in hinge, patent pending "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. This special 3I Series model features a thoughtfully re-designed laptop interior with pockets and file folders in the lid, a hardcore protective interior cover with foam and a new removable desktop with convenient corner cleats to accommodate larger laptop with recessed foam accessory storage in the bottom of the case.