MSD 32829 Super Conductor Spark Plug Wire Set, 8.5mm thickness, 12 inches length Copper alloy conductor has a resistance value of less than 50 ohms per foot for superior spark Ferro-magnetic impregnated core creates an effective EMI choke Forty feet of conductor is wound into a single foot of wire for high EMI suppression; Conductor core features Dupont Kevlar material for increased tensile strength Durable outer sleeve is a proprietary compound for resistance to high heat or abrasion. Stainless steel terminals feature dual crimp tabs to grip wire conductor and outer jacket separately In a single 12 inch Length of super conductor wire there is only 40 to 50 ohms of resistance.