The product is a set of 10 new NGK BP5ES spark plugs, made in Japan and featuring a 14mm thread diameter. These vintage spark plugs come with a 1-year manufacturer warranty and are designed for standard configuration vehicles. They have a voltage requirement of 12V and are compliant with California Prop 65 Warning for nickel content. These NGK spark plugs are a reliable choice for ignition systems in cars and trucks, providing quality performance and durability.