Tyger Auto TG-RS2T40177 RISER For 2007-2018 Toyota Tundra Crew Max 4inch Stainless Steel Side Step Nerf Bars Running Boards Important: only fit CrewMax Cab with 4 full-size doors. Not for double Cab with 2 full-size front doors & 2 narrower rear doors 100% brand new OE-style step bars for both driver & passenger sides. All mounting hardware and DIY instruction included Step bars are made of 4inch wide marine grade T304 Stainless Steel triangle tubing with UV resistant non-slip step pads Easy bolt-on installation. No drilling