U-drive 3" inch Round Stainless Steel side step Nerf Bar Running Boards for 07-14 Silverado/Sierra 1500/2500/3500 New Body Style Extended Cab (With 2 Full Size Front Doors and 2 Half Size Rear Doors) Only fit 07-14 Silverado/Sierra 1500/2500/3500 New Body Style Extended/Double Cab (With 2 Full Size Front Doors and 2 Half Size Rear Doors) 3" Inch Round Style Stainless Steel Tube + Slip-Resistant Plastic Step Pads Made from heavy duty T304 Stainless Steel Direct Bolt-On in Assembling Finished Surface is Mirror Polished, Shiny Chrome Color