These running boards with 450LB capacity are designed as heavy-duty rock sliders for Chevy Silverado and G M C Sierra trucks. The bolt-on side steps provide a secure. non-slip surface for safe entry and exit in wet. muddy. or snowy conditions.The black powder coated finish resists rust and corrosion. ensuring long-term durability for outdoor use. The bolt-on design requires no drilling. making installation straightforward with basic hand tools. These side steps are built for off-road and daily driving alike.Fitment Details:Fits 2007-2018 Chevy Silverado 1500 Crew CabFits 2007-2018 G M C Sierra 1500 Crew CabFits 2007-2019 Chevy Silverado 2500HD/3500HDFits 2007-2019 G M C Sierra 2500HD/3500HDPlease verify your truck's cab configuration and year before purchasing. These running boards are intended for crew cab models only. They are not designed for regular cab or extended cab configurations.For best results. install on a level surface and follow included instructions. Check bolt tightness periodically after installation. Clean with mild soap and water as needed.Whether you need rock sliders for off-road protection. non-stick side steps for daily use. or a 450LB capacity running board for heavy-duty access. these bolt-on black side steps offer a durable and functional solution for your Chevy or G M C truck.