The Tradesman 53 in. Aluminum Fender Well Gun Box provides the extra room needed for storage in an efficient package. The box has a shape which fits snugly against the fender well. The box is constructed from rust-resistant .06-inch aluminum in a Bright or Black finish. It features a sturdy one-piece no-sag base design. Its paints are electrostatically applied to maximize resistance to abrasion and corrosion and included ethafoam mounting strips protect your truck’s finish. The weatherproof gasket prevents leakage and keeps dirt and water out. Measure your trailer before purchasing. This box is made in the USA. See full dimensions below. A B C D E F G 53-inch 54 20.5 8.5 8.5 12 26 16.25