The 3I 2011 MC12 microphone case holds twelve microphones stored vertically and is part of the iSeries waterproof case line. The microphone holes are designed to secure most popular types of handheld microphones, finger cutouts that provide instant access, and a generous storage compartment for cables and microphone clips. The interior is made of high quality PE foam designed to last. The 3I 2011 MC12 microphone case measures 20" x 11" x 8" deep and is covered by SKB's Unconditional Lifetime Guaranty. 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, 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.