6The product is a set of 6 Bosch 6720 spark plugs. These spark plugs are specifically designed for gasoline vehicles and are made of platinum material. They have a voltage of 8V and come with a manufacturer warranty of 1 year. The interchange part numbers for these spark plugs are HR9LII33X, 9612Set8, and 0242225661. The OE part numbers are 9612, and the manufacturer part numbers are 9612-Set8 and 6720. These spark plugs are ideal for enhancing the ignition system of your vehicle, ensuring optimal performance and efficiency.