The product is a set of 3 NGK TR55GP/3403 G-Power Platinum Spark Plugs, designed for gasoline engines. These spark plugs are a direct replacement for OE/OEM part number 3403, suitable for a variety of vehicles. With a warranty of unspecified length, these platinum spark plugs offer reliable ignition performance and are manufactured in the United States by NGK, a trusted brand in the automotive industry.