Lund 23494400 Black Steel 4" Oval Bent Nerf Bars for 1999-2016 Ford F-250/F-350/F-450 Super Duty with SuperCrew Cab Oval-shaped nerf bars with ends bent slightly toward vehicle add functional style to your truck or SUV 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