SKB Injection Molded Empty Equipment Case (20.5 x 15.5 x 7.5-Inch) 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 20 1/2" x 15 1/2" x 7 1/2" empty Patent pending "trigger release" latch system and molded-in cushion grip handle Mil-Standard, Submersible, Multi-Functional Equipment Transport Case: empty (No foam) Internal Dimensions: 20.5" x 15.5" x 7.5"; Weight: 10 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.