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: 97.00 Fitment: 2014/GMC/Sierra 3500 HD/WT Standard Cab Pickup 2-Door/6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged::Bed Length = 97.6, Bed Side = Fleetside, Dually Bed^^2014/GMC/Sierra 3500 HD/WT Standard Cab Pickup 2-Door/6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally Aspirated::Bed Length = 97.6, Bed Side = Fleetside, Dually Bed^^2014/GMC/Sierra 3500 HD/WT Standard Cab Pickup 2-Door/6.0L 5967CC 364Cu. In. V8 FLEX OHV Natura...