The product is a full box of 10 Prestolite 14F52 spark plugs, made in the United States. These spark plugs are designed for direct replacement and are suitable for vintage vehicles. With an interchange part number of 14F42 and an OEM part number of 14F52, these spark plugs are specifically designed for gasoline engines. The manufacturer part number is also 14F52, ensuring compatibility and quality. Perfect for car and truck owners looking for reliable ignition system components. the boxes may be in varying condition as will the plugs, things like surface rust and dirty/worn boxes are to be expected, this will ship via usps ground advantage.