The product is a Champion Spark Plug with the model number RS12YC. It is designed for use in ignition systems in various vehicles, including cars and trucks. Champion is a reputable brand known for producing high-quality spark plugs, making this product a reliable choice for maintaining optimal engine performance. The RS12YC spark plug is a crucial component in ensuring efficient fuel combustion and ignition within the engine, ultimately contributing to reliable starting and smooth running of the vehicle.