Lund 78227 Black 53" Full-Size Aluminum Diamond Plated Fender Well Gun Box 53-inch fender well gun box made of 0.06-inch aluminum with a diamond plated black finish Rust-resistant, electrostatically applied finish can withstand unimaginable beatings and protects against water and rust Ideal for hunters and outdoor sportsmen by providing easy access from the back of the truck bed Measures 53-inches (L) by 8.5-inches (W) by 20.5-inches (H) Comes with a limited lifetime warranty that protects against defects in materials and workmanship