For Samurai side panels protection. They are made with 3/16" cold rolled flat plate steel that is laser cut for close tolerances then folded on a 100 ton press. Heavily welded at the exterior seams. The ROCK BITERS are the strongest one piece side rail ever designed. They look sharp with or without the Samurai fender flares. Designed to fit around the factory plastic trim bracket so removal of that bracket is not necessary for a quick installation. These are shipped in a raw steel condition only.