The SKB 3I-0907-MC3 holds three mics in a very compact case and is part of the 3I Waterproof Series of cases. 3I Series injection-molded, waterproof cases are constructed of ultra high-strength polypropylene copolymer resin and feature a gasketed, waterproof and airtight, submersible design 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 all contribute to its military-grade design. The interior foam is cut on the new waterjet machine SKB is now using to cut custom foam and design new products. The case has convoluted foam in the lid for a compression fit. The SKB 3i-0907-MC3 is allows for 3 mics to stored horizontally, measures 9" x 7" x 4" deep, and is the most compact 3-mic case on the market.