The product is a set of eight new old stock (NOS) 1971 AC Fire Ring spark plugs designed for use in vehicles such as Pontiac Firebird, Chrysler, and Chevy Camaro. These spark plugs are specifically branded as AC and are considered a reliable choice for improving ignition systems in cars and trucks. With their unique design and compatibility with various vehicle models from 1971 and earlier, these spark plugs are a valuable addition to any automotive maintenance or restoration project.