IMPORTANT - Only fit 2009- 2014 Ford F-150 Super Crew Cab (Please check the Cab size picture if you do not know your mode) High quality grade ABS Plastic Covered Slip-Resistant Aluminum side steps can prevent slipping and withstand the toughest weather conditions. Each side can handle up to 450 lbs Our running boards are made of the finest aluminum alloy material, which is sturdy, durable, wear-resistant and corrosion resistance. After repeated tests, it can resist the corrosion of salt spray, and resist ultraviolet radiation without discoloration The installation manual with a detailed combination of graphics and text to make installation even easier. Easy bolt-on installation and No drilling or cutting required The installation manual features a detailed combination of graphics and text, helping make installation even easier. Please contact us any time if you have any issues or complaints