【Fitment】:2007-2021 Silverado/GMC Sierra 1500 (5.8'/69.3"; NOT For Models With Factory Utility Track Sys. & Roll Bar) 【Material】：1.5 mm FRP, 15mm PP Honeycomb.; Hardness of FRP ≧ 30HBa.; Tensile Strength of FRP ≧ 80MPa.; Bending Strength of FRP ≧ 150MPa.; Compressive Strength of PP Honeycomb ≧ 1.4MPa.; Bending Strength of PP Honeycomb ≧ 0.5MPa.; Load-Bearing Capacity of Sheet Metal ≧ 350pounds.; 【High-quality】：Protect your cargo from the elements & theft with this premium bed cover, waterproof, snow proof and dirt proof, Keeps Truck Bed Dry and Secure.Electrophoretic treatment, make the hardware more corrosion-resistant, ensuring a superior durability 【Install】：Easy install, No drilling need. Simply fold from front and back, then lift up and off to gain full use of truck bed. Lightweight design permits easy removal and reinstall 【Item-Offered】：Hard Tri Fold Tonneau Cover x 1; Aluminum Buckle x 2; Triangle Nut x 2; Wrench x 4; Bag Buckle x 2; LED Lamp x 1; Instructions; Waterproof Adhesive Tape;x 2; Wrench x 4; Bag Buckle x 2; LED Lamp x 1; Instructions; Waterproof Adhesive Tape;