[ FITMENT ] - Compatible With 2007-2018 Chevy Silverado 1500 / 2500 HD / 3500 HD Crew Cab, 2007-2018 GMC Sierra 1500 / 2500 HD / 3500 HD Crew Cab, 2011-2018 GMC Sierra 1500 / 2500 HD / 3500 HD Denali Crew Cab ( Attention Note: Rocker Panel Mount [ FITMENT ] - Compatible With Installation ; Will Only Fit Models With 4 Full Size Door That Open In The Same Fashion ) [ STYLE ] - RS Series Running Boards [ DESIGN ] - Rock Slider Style Tubular Construction With Reversible Step Plates For Maximum Strength ; Extended Tire Coverage For Aggressive Wheel And Tire Fitment [ CONSTRUCTION, FINISH & COLOR ] - Made From Road Tough Materials For Durability And Strength ; Added Protection Against Road Spill, Stones And Rock Debris ; Textured Powder Coated Finish ( Matte Black ) For Superior Corrosion Resistance [ INSTALLATION & COMPONENTS ] - Each Kit Contains 1 Pair Of RS Running Boards, Vehicle Specific Mounting Brackets & Required Installation Hardware With Easy To Follow Installation Guide That Requires A Basic Mechanic Tool Set