Get in and out of your tall truck way easier with these OBNAUX running boards! They're specifically made for 2007-2018 Chevy Silverado 1500 and 2007-2019 Silverado 2500/3500 HD crew cabs, as well as the equivalent GMC Sierra models (must be the 4-door crew cab). The design features two steps, which is awesome if you have a lifted truck or big tires – it gives you an extra foothold. They're built tough from 2mm thick carbon steel with a durable black powder coat finish to fight rust. Each step has a textured, non-slip pattern for safe footing, even when wet. They're rated to hold up to 550 lbs per side! Installation is a straightforward bolt-on process using the included brackets and hardware – no drilling needed, and it should take about 20 minutes per side. They not only add major convenience but also give your truck a more aggressive, finished look. Make sure you have the right cab style before ordering!