Audrfi Nerf Bar Fit 01-14 Silverado/Sierra 1500/2500/3500 Crew Cab 4" Black Oval C/S Side Step Rails Running Board Surface-finish:Black Powder Coated 4" Inch Oval Style Tube + Slip-Resistant Plastic Step Pads ItemOffered:2pcs 4" Oval Carbon Steel Side Step Nerf Bars + Mounting Hardwares + Installation Instruction Includes both passenger and driver side boards Made from heavy duty T304 Stainless Steel,the Highest Standard of Rust and Corrosion Resistance