4-space rack, rear rails, shock resistant, optional caster kit, roto-molded for strength, adjustable elastomer shock absorbers, molded handles provide secure gripping points, solid-stack X-Pattern interlock, front and rear caps Full-Size, Recessed Locks, Shock Absorbent Feet, Interior Width: 19" Interior Height: 7", Exterior Depth: 27", Exterior Width: 28", Exterior Height: 15.5", Rack Depth Rail-to-Rail: 20" cm, depth from rail to back cover: 23.5 in., depth at cover: 2.2 in., weight: 16.33 kg.