RAFTUDRIVE Running Boards: 4 in Oval Stainless Steel Fit 07-18 Silverado/Sierra (Excluding Diesel Mode) 1500/2500HD/3500HD Crew Cab (with 2 Full Size Front Doors and 2 Full Size Rear Doors) Only fit 07-18 Silverado/Sierra 1500/2500/3500 New Body Style Crew Cab (With 2 full size front doors and 2 full size rear doors) Re:Not Fit Diesel Models w/DEF Tank 4" Inch Oval Style Stainless Steel Tube + Slip-Resistant Plastic Step Pads Contents in package: 2 pcs bars (for driver side and passenger side respectively) + Brackets + Assembling accessories + Instruction Direct Bolt-On, Unnecessary drilling Made from heavy duty T304 Stainless Steel, Mirror Polished, Shiny Chrome Color