The product is a set of 4 NGK (2405) R5673-6 Racing Spark Plugs designed for ignition systems in cars and trucks. The NGK brand is known for producing high-quality spark plugs, and this particular model, R5673-6, is specified for racing applications. These spark plugs are essential components that provide the necessary spark to ignite the fuel-air mixture in the engine, ensuring optimal performance and efficiency. Perfect for racing enthusiasts or those looking to upgrade their ignition system, this set of spark plugs will help enhance the overall performance of the vehicle....