Jeep® Performance Parts Rock Rails are both functional and decorative and this design includes a rub rail made of Black, powder coated steel. These are designed to meet the demands of the off-roader and provide added vehicle body protection. They are fabricated using zinc-coated steel for superior corrosion resistance and roll-formed. The outer surface is e-coated and then Durabull (truck bedliner coating) coated providing superior protection and durability. Rock Rails designed specifically for your two-door Jeep Wrangler (JL). Not compatible with Running Boards.