High quality Lumenition performance spark plug leads to suit Ford Kent OHV engines (inc Formula Ford). Kit consists of 4 plug leads but no coil (king) lead. Please see below for suitable coil leads at various lengths. Features include: 8mm diameter, 100% silicone translucent outer sheath. Stainless Steel wire for maximum spark conduction. Ferromagnetic layer for EMC suppression and a reinforced kevlar fibre core.