Triple Layer Construction...
of silicone and advanced space-age polymers with dual layers of fiberglass/polyester stranding for unparalleled high voltage dielectric and physical strength up to 600° F. Wire uses a 34 gauge spiral wound alloy, the heaviest in the industry, it can deliver 160% more amperage than most wires. You wouldn't run an arc welder off a lamp cord, so don't let your spark plug wires be the weak link in your high performance ignition system! 
Don't forget the Wire Separators, 110-170023!