Features & Specifications: Very rugged & virtually indestructible Inside dimensions: 51.46" x 13.83" x 5.13" Outside dimensions: 52.94 x 16.5 x 5.87 O-ring sealed & Waterproof to 3 feet. Automatic pressure equalization valve. Lock holders are great for use with padlocks for added security. Spring release latches, lock in place. Customizable, three-piece sheeted foam. Stackable. Two, heavy duty handles w/finger groove on each side for easy pick up and carry. Rugged true off-road wheels with stainless steel bearings to handle any terrain. Only 23 lbs Lifetime warranty. 100% MADE IN USA