MSD Ignition 31249 Super Conductor SPARK PLUG WIRESconductor type : Copper Alloy With Ferro Magnetic Impregnated Center Core distributor boot material : Silicone and Synthetic rfi suppression : Yes manufacturer warranty : Manufacturer's Warranty manufacturer part number : 31249 color : Red assembled : Yes wire resistance : 40 To 50 Ohms Per Foot Resistance wire material : Silicone and Synthetic spark plug boot material : Silicone and Synthetic spark plug boot color : Gray spark plug boot ends : 90 Degree distributor terminal ends : HEI distributor boot color : Gray california prop 65 warning : This product can expose you to chemicals which are known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information visit www.P65Warnings.ca.gov product shipping template : Migrated Template brand : MSD Ignition number of wires : 8 mpn : 31249 upc : 085132312498 diameter (mm) : 8.5 Millimeter