The NGK 7397 Iridium IX Spark Plug is a high-quality ignition component designed for gasoline engines. With a manufacturer warranty of 1 year, this spark plug is made of durable nickel material and features the latest in spark plug technology. The California Prop 65 Warning indicates the presence of nickel, ensuring consumers are aware of potential health risks associated with the product. Whether you are a car enthusiast or a professional mechanic, the NGK 7397 Iridium IX Spark Plug is a reliable choice for your vehicles ignition system.