The 3I-2015-MC24 case is the large microphone case and holds 24 microphones vertically and is extra deep to accommodate longer condenser mics. This case includes a large padded accessory compartment for storage of cables, microphone clips or other microphone essentials. 3i Series injection molded waterproof case is constructed of ultra high-strength polypropylene copolymer resin and features 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, 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.