The product is a set of 8 GM B43 spark plugs with a vintage design, featuring a fire ring configuration and made of copper material. These 12V spark plugs are suitable for gasoline engines and are considered performance parts. Manufactured in the United States, these spark plugs have a length of 3 inches and are designed for standard ignition systems in cars and trucks. The OE/OEM part number is 5613125, making them a reliable choice for maintaining or upgrading your vehicle's ignition system.