Mifeier 3" Black Side Step Rails Nerf Bars Running Boards Fit 07-18 Silverado/Sierra New Body Double/Extended Cab (with 2 Half Size Rear Doors)(No Diesel) Fitment:2007-2018 Chevy Silverado/GMC Sierra 1500/2500/3500 New Body Style Extended/Double Cab(Exclude Diesel Models And Z71 models) Item-offered, 2pcs 3" Round Carbon Steel Side Step Nerf Bars + Brackets + Necessary Mounting Hardware + Installation Instruction Installation-type, Direct Bolt-On To The Rocker Panel Surface-finish, Black Powder Coated Material, Made from heavy duty Carbon Steel