The NGK Spark Plugs Set includes 4 high-quality spark plugs with a 6.0mm spark position and a thread length of 19.0mm. These spark plugs feature a nickel middle electrode, 2 earthed electrodes, and interference suppression capabilities. Designed for optimal performance, these spark plugs are suitable for a range of vehicle models and are a reliable choice for maintaining your car's ignition system. With the manufacturer part number 2288 and reference OE/OEM numbers from reputable brands such as BMW, Peugeot, and Renault, this spark plugs set is a durable and efficient option for your vehicle.