The SKB 3I Series of waterproof cases is 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. This model has cubed foam.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.Audio gear not included. Ultra high-strength polypropylene copolymer resin UV, solvent, corrosion and fungus resistant (MIL-STD-810F) Complete gasket seal makes these cases absolutely watertight (MIL-STD-C-4150J) Automatic ambient pressure equalization value (MIL-STD-648C & IP67) Resistant to corrosion and impact damage Continuous molded-in hinge Patent pending “trigger release” latch system Rubber over-molded cushion grip handle Layers of cubed foam for customization Locking loops to accept a customer supplied lock Interior Length: 18.50 in (46.99 cm) Interior Width: 13.00 in (33.02 cm) Interior Depth: 7.00 in (17.78 cm) Lid Depth: 1.50 in (3.81 cm) Base Depth: 5.50 in (13.97 cm) Shipping Weight: 10.00 lb (4.54 kg) Product Weight: 7.90 lb (3.58 kg)