The product NGK Spark Plugs 5829 DP8EA-9 is a set of four high-quality spark plugs designed for off-road motorcycles. These spark plugs feature a nickel alloy electrode tip, a standard configuration, and a heat range of 8. With a 12mm thread diameter and a 19mm hex size, they are compatible with gasoline fuel type and have a spark gap of 0.035 inches. Manufactured by NGK, a trusted brand known for its reliable spark plug products, these plugs are a great choice for maintaining optimal engine performance and ignition on your motorcycle.