Buyers Products Diamond Tread Aluminum Straight Side Backpack Truck Box provides convenient and spacious storage behind the cab. Two fixed shelves give you a multitude of options for organizing your tools and equipment. The tool box features a rugged .100 in thick aluminum body with full-height doors and dual die-cast compression latches. Stainless steel continuous hinges provide years of reliable strength.  The box is ideal for use on cab-over trucks. It allows clearance for frame-mounted battery boxes and tanks. Installation is easy with built-in frame mounting rails. Rubber D-bulb sealed doors, and a built-in rain channel helps protect your tools and equipment from weather and theft. A spring-cushioned mounting kit is included for easy installation. Failure to use supplied mounting kit may void the warranty.