These Vevor running boards provide a wide 6-inch stepping surface for easier, safer entry and exit on compatible Chevy Silverado and GMC Sierra crew cab trucks. Built from high-strength carbon steel with a black powder-coated, anti-rust finish, they are designed for durability in rain, snow, and muddy conditions. The non-slip surface improves traction, while the factory-matched mounting points allow a no-drill installation. With a 550 lb load capacity, they offer stable support for daily driving, work use, and outdoor adventures.