3" Steel Tube with Black Powdercoat for Long Life against the elements. Trail FX Black Nerf Bars are made with quality and offer a 3 year warranty. Includes ABS injection molded plastic step plates and powder coated vehicle specific mounting brackets for ease of installation. Available for most popular Ford, Chevy, Dodge, Jeep, and Toyota truck applications. Installs in under an hour with very basic tools. Shipping is included in price.