Angry Elephant Roll-Up Tonneau Cover 1999-2016 Ford F250, F350, F450 Super Duty Only, 6ft 6inch (78 inch) Truck Bed Fitment: 1999-2016 Ford F-250/F-350/F-450 Super Duty Only, 6ft 6inch (78 inch) Bed. (IMPORTANT: Please measure your truck bed LENGTH before ordering. 90% off fit issues are from customers not knowing which size bed they have) COMES 80% ASSEMBLED IN BOX: Easy installation with provided allen key in 20 minutes with no tools or damage to vehicle. Even faster with cordless drill. It even works with bedliners. For over the rail bedliners a whole must be cut in the liner to allow mounting. Your Tonneau Cover locks shut and can't be opened without your tailgate being down. FREE Tailgate Seal & LED Bed Light Included 10 year manufacturer limited warranty! (Easy returns if you order the wrong model. Customer will assume the return shipping cost.)