Extruded aluminum. Slip resistant rubber step area. Molded end caps add unique style. Cradle mounted boards. 5 year warranty. Sure-Grip Running Boards; Black Aluminum; 85 in. Length; Does Not Include Mount Kit; Vehicle Specific Mount Kit Must Be Purchased Separately; Extruded Aluminum 2007-2023 Chevrolet Silverado 1500 Crew Cab Pickup, 2023 Chevrolet Silverado 1500 Double Cab Pickup, 2010-2018 Chevrolet Silverado 2500 Crew Cab Pickup, 2007-2023 Chevrolet Silverado 2500 HD Crew Cab Pickup, 2023 Chevrolet Silverado 2500 HD Double Cab Pickup, 2007-2023 Chevrolet Silverado 3500 HD Crew Cab Pickup, 2023 Chevrolet Silverado 3500 HD Double Cab Pickup, 2009-2010 Dodge Ram 1500 Crew Cab Pickup, 2010 Dodge Ram 2500 Crew Cab Pickup, 2010 Dodge Ram 3500 Crew Cab Pickup, 2004-2008 Ford F-150 SuperCrew Cab Pickup, 2007-2023 GMC Sierra 1500 Crew Cab Pickup, 2023 GMC Sierra 1500 Double Cab Pickup, 2007-2023 GMC Sierra 2500 HD Crew Cab Pickup, 2023 GMC Sierra 2500 HD Double Cab Pickup, 2007-2023 GMC Sierra 3500 HD Crew Cab Pickup, 2023 GMC Sierra 3500 HD Double Cab Pickup, 2006-2014 Honda Ridgeline, 2006-2008 Lincoln Mark LT, 2011-2023 Ram 1500 Crew Cab Pickup, 2023 Ram 1500 Quad Cab Pickup, 2019-2023 Ram 1500 Classic Crew Cab Pickup, 2023 Ram 1500 Classic Quad Cab Pickup, 2011-2023 Ram 2500 Crew Cab Pickup, 2023 Ram 2500 Mega Cab Pickup, 2011-2023 Ram 3500 Crew Cab Pickup, 2023 Ram 3500 Mega Cab Pickup