Fitment: Running Boards for 2007-2018 Chevy Silverado/GMC Sierra 1500, 2007-2019 Silverado/Sierra 2500HD 3500HD, 2019 Silverado 1500 LD, Only for Crew Cab (4 Full Size Doors), Not for 2007 Silverado/Sierra Classic & All the Diesel Engine Model. Material: The side step is made of high-quality aluminum alloy and anti-slip plastic pads, offering rust and corrosion resistance. The ridge pattern surface design not only enhances grip but also adds a stylish appearance to your vehicle. 6.5" Widened Design: These truck side steps provide a generous stepping area, enhancing stability and comfort when getting in and out of the vehicle. Supports up to 500 lbs. Anti-Slip Surface: The running boards feature a textured or treaded surface that ensures secure footing, even in wet or slippery conditions. Installation: Easy to install with no drilling or modification required. The package includes 2 running boards, brackets, installation hardware, and detailed instructions. Running Boards Compatible with 2007-2018 Chevy Silverado/GMC Sierra 1500, 2007-2019 Silverado/Sierra 2500HD 3500HD Crew Cab, Side Steps Rail Nerf Bars