[Suitable] For 2019-2024 Chevy Silverado & GMC Sierra 1500 (Excl 2019 LD/LT),2020-2024 Chevy Silverado/GMC Sierra 2500 HD 3500 HD Crew Cab [Material] The side steps are made wide heavy duty steel tubing for optimum durability and strength. Plating and black powder coating finishing, rust prevention [Effect] Anti-slip pedals help the elderly, children and women to be safer and more leisurely in and out of the vehicle,It is more convenient to clean the roof; protect the sides of off-road vehicles from violent impact, and 2" heavy-duty steel pipes are safer [Durable coating] Textured black powder coat finish & Premium E-coating process inside for long-lasting durability and corrosion resistance [Easy to install] No cutting or No drilling. Secure directly with screws [Packing list] A Set of Side Step + A Set of Screws + Installation Instructions MARSITTER Black Side Step Bars Running Boards Compatible with 2019-2024 Chevy Silverado & GMC Sierra 1500 (Excl 2019 LD/LT),2020-2024 Chevy Silverado/GMC Sierra 2500 HD 3500 HD Crew Cab