The product is a pack of six new NGK vintage R spark plugs, specifically the BKR5EY-11 model. These spark plugs are designed for gasoline engines and are manufactured in Japan. They are standard configuration plugs with a voltage of 12V, making them a performance part for ignition systems. This rare set of NOS spark plugs is sure to enhance the horsepower and combustion efficiency of any vehicle in need of a vintage ignition upgrade.