The product is a set of four NGK spark plugs, model ZFR6V-G, designed for Vauxhall Corsa D vehicles from 2009 to 2015. These spark plugs are manufactured in Japan and have a voltage of 6V. They are not classified as classic or performance parts, but are genuine replacement parts with reference OE/OEM number ZFR6V-G. Known for their quality and reliability, NGK spark plugs are essential components for the smooth operation of an engine, ensuring optimal ignition and performance.