The product is a set of new old stock Motorcraft Ford BF 42 spark plugs. Manufactured by Ford in Michigan, USA, these spark plugs are designed for use in ignition systems of cars and trucks. The Manufacturer Part Number for these spark plugs is BF 42, indicating compatibility with specific vehicle models from Ford. As new old stock, these spark plugs have not been previously used and are in their original packaging, making them a reliable choice for maintaining optimal engine performance.