The product is a set of 4 new ignition coils designed for Audi A4, A6, A8, S8, TT, Volkswagen Golf, and Jetta models from 1999 to 2008. These ignition coils are interchangeable with parts numbers C1318 and UF274, and are intended to be installed on the front of the vehicle. They are essential components in the ignition system, ensuring reliable and efficient performance of the vehicle's engine.