[video] [/video] Description YITAMOTOR running boards are made of high-quality material, and we are very strict on quality control to make sure to serve superior service and auto parts to our customers. [specification] Item Weight 59 pounds Package Dimensions ?79.3 x 11.02 x 8.27 inches Exterior Powder Coated Special Features Waterproof, durable steel, 4inch drop design, anti-slipping steps Load capacity more than 500lbs [/specification] Fitment 2007-2018 Silverado 1500 Double Cab 2007-2018 GMC Sierra 1500 Double Cab 2007-2019 Silverado 2500HD 3500HD Double Cab 2007-2019 GMC Sierra 2500HD 3500HD Double Cab Features High-quality Material: unique textured black powder coating offers exceptional rust and corrosion resistanceHigh load-bearing capacity: each side supports more than 500lbsEasy Installation: direct bolt-on installation with no drillingProtect the vehicle: the paint on the side of the vehicle can be protected from being scratched4-inch Drop Design: provide a safer and easier way to step into and out of your vehicle than the traditional running boards Professional installation recommended Package Included A pair of running boards( driver side & passenger side)The whole mounting kit Installation instruction [des] - Each side supports more than 500lbs- Direct bolt-on installation with no drilling- 4-inch drop design- 1-year warranty.- Installation Instruction [/des]