BAKFlip G2 Hard Folding Tonneau Cover Fits 6.6 ft. Bed;Type: Fiberglass Reinforced Polymer/Aluminum Folding Tonneau Cover; Installation Time: 1hr;Mounting System: Bed rail clamps; Material: Fiberglass Reinforced Polymer w/ Aluminum underside; Locking System: Concealed Easy Latch; Warranty: 2 year warranty CHEVROLET GMC SIERRA 1500 SIERRA 2500 HD SIERRA 3500 HD SILVERADO 1500 SILVERADO 2500 HD SILVERADO 3500 HD BASE DENALI HIGH COUNTRY LS LT LTZ SLE SLT SSV WT 2014 2015 2016 4.3L LV3 (262) Vortec 5.3L Ecotec3 L83 (325) 6.2L Ecotec3 L86 (376) 6.6L Duramax Turbo Diesel LML (400) 6L GEN IV CNG LC8 Vortec (364) 6L GEN IV Flex L96 Vortec (364) 6L GEN IV Flex LC8 Vortec (364) 6L GEN IV L96 Vortec (364) 6L GEN IV LC8 Vortec (364) CNG DIESEL FLEX GAS with Rack Compatible BAK Industries BAK BAKFlip G2 Hard Folding Tonneau Cover - 26121 26121 Tonneau Cover