The product is a set of New In Box Champion Copper Plus Resistor Spark Plugs with the model number RF11YC. These spark plugs are standard configuration, made of copper material, and designed for gasoline engines. They are authentic Champion products manufactured in the United States, making them a performance part that can enhance the ignition system of cars and trucks. With a vintage design and improved performance, these spark plugs are a reliable choice for maintaining and improving the overall functionality of your vehicle's ignition system.