Compatible Vehicles: High mount brake light Compatible with 1999-2006 Chevy Silverado 1500 2500 3500 & HD Models, Fit 2007 Chevy Silverado 1500 2500 3500 & HD Models Classic, Fit 1999-2006 GMC Sierra 1500 2500 3500 & HD Models, Fit 2007 GMC Sierra 1500 2500 3500 & HD Models Classic Material: Made of high quality material, it is sturdy and durable and not easily damaged. Combined with exquisite manufacturing process, it extends the service life SAE/DOT Approval: This product undergoes strict quality control. waterproof dust-proof anti-aging anti-yellowing. Not only durable but can withstand extreme weather conditions Brighter and Safer: Clear lens and unique design make the lights have good transparency and light reflectivity, make lighting brighter and wider, improve driving safety for you and others Installation: Manufactured according to factory specifications. If you have no installation experience, professional installation is highly recommended 3D LED Bar Third 3rd Brake Light Lamp Compatible with GMC Sierra 1500 2500 3500 & HD Models 1999-2006 Center High Mount Rear Trailer Cargo Stop Light(Smoky Lens Clear Housing)