-100% Brand new and never been used -This brackets are suitable for 18" (Height) x 18" (Depth) Toolboxes or Step Boxes.-The truck tool box mounting brackets are made of heavy-duty steel,strong and durable for working -The Steel brackets are built for long wear with a Corrosion-resistant black powder-coated finish. which has corrosion resistance and long service life -Brackets feature a universal hole pattern for easier installation.-We produce brackets by welding of channel steel, Mounting is also made easy with a universal hole pattern design,User just need bolt-on braces on Brackets.-Conveniently sold in boxed pairs. -Used for installing in the underbody truck toolbox or trailer tongue tool box,To help protect and secure your valuable equipment for the long hual.