Lund 23991006 Polished Stainless Steel 5" Oval Straight Nerf Bars for 1999-2016 Ford F-250/F-350/F-450 Super Duty with SuperCrew Cab 5" Oval step creates safe, sure stepping surface with a modern OE look; No-nonsense straight style, is clean and stylish Marine-grade polished 304 stainless steel finish 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