Fitment: Compatible with 1999-2006 Chevy Silverado /GMC Sierra 1500 2500 3500 & HD Models with 6.5' Bed; Also compatible with 2007 Chevy Silverado /GMC Sierra Classic Models with 6.5' Bed. Fits Fleetside / Styleside Models Only Durable Construction: The Tonneau Cover is built with high-quality Sailcloth Vinyl designed to withstand the toughest weather conditions. Whether it's rain, snow, or intense sunlight, this cover ensures your truck bed stays protected, keeping your cargo safe and dry year-round Enhanced Security: The Tonneau Cover offers additional protection against theft and weather damage. The cover stays firmly in place, ensuring that your belongings are safe and shielded from prying eyes Improved Fuel Efficiency: By reducing wind drag on your truck bed, the Tonneau Cover helps improve fuel efficiency. It provides a smooth, aerodynamic surface that minimizes air resistance Package: 1 X Tonneau Cover with installation accessories and instructions.. Installation mode: handle+buckle fixation