Fitment: Compatible With 2020-2026 Chevy Silverado/GMC Sierra 2500 3500 HD 6.9 FT (82") Bed. High Strength Materals: high strength fiberglass reinforced polymer honeycomb panel to provide maximum protection;Water proof and Anti-moisture,strong resistance to chemicals,corrosion resistant，with Maximum bearing weight 500 pounds. Easy Installation：No drilling and no additional tools. You just need to rotate the screw up into place until the jig is aligned with the truck track. Advanced Features: Protect your cargo from the elements & theft with this premium bed cover, waterproof, snow proof and dirt proof, Keeps Truck Bed Dry and Secure.with Sound isolation,Energy and heating absorption,Enviroment friendly. Professional Service: If you have any problems with your cover, our tonneau cover experts are at your service and ready to help. Save Energy: The aerodynamic design of the hood reduces wind resistance, improves fuel efficiency and saves you money. Perfit Liner FRP Hard Quad-fold Truck Bed Tonneau Cover for 2020-2026 Chevy Silverado/GMC Sierra 2500 3500 HD 6.9 FT (82") Bed