Extang Tonneau Cover Features: All-Climate Design That Is 4-Way Adjustable Snaps Along Cab Rail Allow Quick And Easy Access No Drilling; No Damage SpringLock+ Bows-Easy To Install; Never Fall Off 1-Finger Removal Of Tail Rail w/LeverLock+ System SnapStopper+ Keeps Snaps On Rail When Rolled Up Fiberglass Reinforced Nylon Snaps MaxCare Warranty; 10 Year Tarp; Lifetime Frame Height: 5.00 Width: 9.00 Length: 78.00 Fitment: 2007/GMC/Sierra 1500 Classic/SLT Extended Cab Pickup 4-Door/6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally Aspirated::Bed Length = 69.2, Bed Side = Fleetside^^2007/GMC/Sierra 1500 Classic/SLT Extended Cab Pickup 4-Door/5.3L 5328CC 325Cu. In. V8 GAS OHV Naturally Aspirated::Bed Length = 69.2, Bed Side = Fleetside^^2007/GMC/Sierra 1500 Classic/SLT Crew Cab Pickup 4-Door/6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally Asp...