ACDelco Silver (Advantage) Refurbished Windshield Wiper Blades are a quality, high value alternative for General Motors vehicles as well as most makes and models and are backed by General Motors. Refurbishing windshield wiper blades involves returning the failed part to a factory certified repair facility for cleaning, inspection, and diagnosis. Any faulty components are identified and replaced when necessary, and the repaired unit is tested again to ensure it functions to ACDelco specifications. In addition, refurbishing also benefits the environment by returning components back into service rather than processing as scrap or simply disposing of them. ACDelco Silver (Advantage) parts are a good choice for many vehicles on the road today. Some ACDelco Silver parts may have formerly appeared as ACDelco Advantage.