Protect and easily access your equipment with the Buyers Products Diamond Tread Aluminum Underbody Truck Box. Available in a variety of sizes, each box is made of strong, corrosion-resistant.100 in. thick aluminum. The recessed drop door combined with the continuous hidden hinge and replaceable gasket system keep weather and grime away from your tools. Aircraft grade cables help prevent damage. The locking, die-cast compression latch provides a tight seal and deters theft.