Protect and secure your equipment for the long haul with Buyers Products Smooth Aluminum Underbody Truck Box with Barn Door. Each professional grade box is crafted with .125 inch thick smooth aluminum with a built-in rain gutter. Reinforced side-hinged swinging doors and a 3-point locking, die cast compression latch system help protect your tools from theft and weather. The unit features an aluminum continuous hinge and watertight D-bulb door seal.