Lund 24090004 Black Steel 5" Oval Straight Nerf Bars 2015-2018 Ford F-150, 2017-2018 Super Duty F-250, F-350, F-450, F-550 SuperCrew Cab 5" Oval step creates safe, sure stepping surface with a modern OE look; No-nonsense straight style, is clean and stylish 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