This series includes spark plugs, glow plugs, and spark plug wire sets ( For American vehicles) that fit most vehicle makes This series includes spark plugs, glow plugs, and spark plug wire sets ( For American vehicles)that fit most vehicle makes and models. ISO9002 certified.Inner packing: 1pc/color box, polybagOuter packing: 200pcs/carton Spark Plug Wire Set( For American vehicles)