Lund 260104009 Black Steel 5" Oval Wheel-to-Wheel Nerf Bars for 2007-2018 Silverado 1500, 2500HD, 3500HD Extended Cab with 6.5' Bed Wheel-to-wheel bars provide an extra step at the rear of the bar for easy access to the front of the truck bed, tool boxes or ladder racks; 5 Oval step provides extra-wide stepping surface Rugged and durable black powder coated steel is corrosion resistant Non-slip, flat step pads provide traction for safe footing Solid construction supports up to 350 pounds Pre-assembled for easy no-drill installation with all mounting hardware included