Access 70510 Adarac Truck Bed Rack for Chevrolet/GMC New Body with 5' 8" Bed Clean look; it sits neatly behind the cab and is contoured for a low-profile and strong design Uprights and cross bars; uprights feature a black powder coat finish with tie-down openings; the cross bars are made from 1-1/4 inches galvanized steel that does not chip; this system works with universal accessories Stake pocket installation; attaches to the truck bed with sturdy, stake pocket inserts, top mount, easy, one wrench installation Versatility; works with Access brand tonneau covers and other inside the rail tonneau covers; applications for most Ford, GM, Dodge, and Chevy trucks Tie-down rail allows for quick and easy tie down of cargo; the full length tie-down rail allows for multiple tie down locations, that can be used with or without the uprights