Closely woven fiberglass impregnated with high voltage, leak resistant silicone which add up to 8,000 volts of extra insulation. For best results, it is recommended that the sleeve cover the full length of wire from spark plug boot to distributor boot and sealed with Shrink Sleeve #710-72030. Fits 7mm and 8mm wire. 25'/pkg.
Extends Plug Wire Life!
Estimated to ship direct from manufacturer in 24hrs