UWS 5th wheel truck tool boxes provide unbeatable storage and security for your items in the bed of your truck. Each box features a corrosion-resistant aluminum construction, a stainless steel locking system and a patented RigidCore foam-filled lid -- all to keep your equipment and valuables safe, well-organized and easily accessible whenever needed. This particular 5th wheel tool box is designed to be used when towing a 5th wheel trailer. It is built with a low profile to provide clearance for the 5th wheel trailer overhang. Each UWS truck tool box is constructed from extra-thick aluminum for increased structural strength. The tub is welded together into a single piece for weather resistance and to easily hold heavy tools and other items. The lid features our patented RigidCore foam-filled design, sandwiched between two aluminum plates. This greatly increases the strength of the lid and