The product is a set of four genuine OEM Subaru spark plugs, specifically designed for models from 2011 to 2019 including the Forester, Impreza, Legacy, and Crosstrek. Made in Japan, these glow plugs come with a 1-year warranty and are compatible with part numbers 22401AA7800 and SILZKAR7B11. Subaru is the trusted brand behind these quality ignition components, ensuring optimal performance and reliability for your vehicle.