SKB Equipment Case 20.38 " x 11.44" x 7.5&rdquo; Mil-Standard, Submersible, Multi-Functional Equipment Transport Case: Empty (No foam) Internal Dimensions: 20.5" x 11.5" 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.