Fit 01-14 Chevy Silverado/GMC Sierra Crew Cab (w/ 4 Full Size Doors Only) 6" Mega Oval S/S Side Step Rails Nerf Bar Running Boards Installation: Bolt-On Style: 6" Inch Mega Oval Style Tube + Slip-Resistant Plastic Step Pads Item offered: 2pcs 6" Mega Oval Stainless Steel Side Step Nerf Bars + Mounting Hardwares + Installation Instruction Material: Made from heavy duty T304 Stainless Steel Surface finish: polished