The IK20TT (4702) DENSO IRIDIUM TT SPARK PLUGS SET OF 4 is a high-quality set of spark plugs designed for vehicles. Made by the reputable brand Denso, these spark plugs are known for their durability and reliable ignition performance. The set includes four units, making it convenient for replacing all the spark plugs in your vehicle at once. With fast shipping available, you can quickly get your hands on these premium spark plugs to improve the overall performance of your vehicle's ignition system.