Rock Light Universal Backing Plate adds stability when attaching rock lights to factory wheel well liners. Made in the USA with 3D printing technology, this pack of 4 plates fits most rock lights, including Baja Designs, Rigid, and Auxbeam. Mounts behind the factory wheel well panel on most trucks or SUV's to provide extra support. Get ready for a sturdy and hassle-free way of mounting your rock lights! Rock lights and hardware not included.