The product is a set of four Denso spark plugs designed specifically for the Lexus IS300h Mk3 2.5 model from 2013 to 2020 with engine code 2AR-FSE. These spark plugs have a 0.8mm electrode gap, a thread size of M14x1.25, and a tightening torque of 22 Nm. They feature a resistor, three earthed electrodes, and an iridium middle electrode, ensuring reliable ignition performance. The spark plugs come in a gross weight of 53g per unit, making them a durable and high-quality choice for your vehicle's ignition system.