Gatortrax MX Retractable (fits) 2014-2018 Chevy Silverado GMC Sierra 5.8 Foot Bed Only Matte Aluminum Truck Bed Tonneau Cover (G80461) Made in The USA Constructed of heavy duty aluminum slats protected with a matte black powder-coat that is extremely UV resistant. Can hold 500 lbs evenly distribuated. Backed by Gator for Limited Lifetime. Made in the USA Slides on maintenance free sealed ball bearings Lockable with a key and can be locked in any position The 11"x11" canister is compact and allows for maximum bed usage.