Westin has perfected the most enhanced cab-length nerf bars available. As a result, they've created The Westin Signature Series nerf bars that bring together exceptional design and attractive looks to enhance the functionality and style of your GMC Sierra 1500. These start with a 3" round steel tube with recessed step pads that are UV resistant and remain attached to the tubing to always provide a non slip step for you and your passengers. Your Westin Signature Series Steps come with a bright chrome plating finish and will arrive with clear cut instructions and all mounting hardware needed for an installation that will take less than one hour with zero drilling required. Upgrade your GMC Sierra 1500 today and increase your vehicles functionality while adding an impressive finished look.