SKB Large Waterproof Pro Audio Case 29 x 18x 14 inches, with Wheels and Cubed Foam 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) SKB Mil-Std Waterproof Case 29" x 18" x 14" w/wheels and cubed foam Patent pending "trigger release" latch system and molded-in cushion grip handle Mil-Standard, Submersible, Multi-Functional Equipment Transport Case: Cubed Foam Internal Dimensions: 29" x 18" x 14; Weight: 29 lbs. Ultra high-strength polypropylene copolymer resin; resistant to UV, solvents, corrosion, fungus and impact damage. Automatic ambient pressure equalization valve. Cases stack securely and accommodate padlocks.