Mifeier 4" S/s Side Step Nerf Bars Running Boards Fit 07-18 Silverado/Sierra 1500/2500/3500 New Body Style Extended/Double Cab (w/ 2 Half Size Rear Doors) 2007-2018 Chevy Silverado/GMC Sierra 1500/2500/3500 New Body Style Extended/Double Cab With 2 Full Size Front Doors + 2 Half Size Rear Doors Only (Exclude Diesel Models w/ DEF Tank) Material: Made from heavy duty T304 Stainless Steel Item offered: 2pcs 4" Round Stainless Steel Side Step Nerf Bars + Mounting Hardwares + Installation Instruction Direct Bolt-On To The Rocker Panel Free shipping from local warehouse