Certificate good for one black genuine Rhino Liner, full bed. Up to an 8 foot bed. Rhino linings thick polyurethane forms an airtight, water tight bond, prevents rust and corrosion, shrugs off impact and abrasion and has a non skid surface to keep your load from shifting. A top of the line Rhino Lining has a national lifetime warranty. Custom color match and UV protectant available for additional charge.