Westins Pro Traxx 4 Oval Nerf Step Bars feature a 4 in. oval tube with a heavy-duty step pad that provides a wider and more secure step area. They feature 30 factory style bends that have seamless domed ends so there are no end-caps or exposed bolt heads. Applications are bolt-on installation. PRO TRAXX 4 Oval Nerf Step Bars; Black Powdercoat Mild Steel Rocker Mount; Incl. Mount Kit And Hardware; For Double Cab; Aggressive Saddle Mounted Step Pad 2014-2018 Chevrolet Silverado 1500 Double Cab Pickup, 2019 Chevrolet Silverado 1500 LD, 2015-2018 Chevrolet Silverado 2500 Extended Cab Pickup, 2015-2019 Chevrolet Silverado 2500 HD Double Cab Pickup, 2015-2018 Chevrolet Silverado 3500 HD Double Cab Pickup, 2014-2018 GMC Sierra 1500 Double Cab Pickup, 2019 GMC Sierra 1500 Limited, 2015-2019 GMC Sierra 2500 HD Double Cab Pickup, 2015-2018 GMC Sierra 3500 HD Double Cab Pickup