Description Protection: Helps prevent burning, hardening, and cracking of boots. Header heat wrap spark plug heat protection for both boot and wire, can protect the performance of your expensive spark plug wire assembly and increase their lifespan with the help of SBC BBC 350 454.
Durable Material: The spark plug wire sleeve is made of two layers of fiberglass. It has good high-temperature resistance and anti-corrosion effect, and the heat insulation temperature can reach 1500 degrees.
Compatibility: Length 6.1 \" (15.5cm), ID 1.4 \" (35mm), it works with 90 degree, 45 degree, and straight spark plug heater socks.
Professional Installation: No instructions included. Just slide the large end (with seams) over the boot. Then gently slide the ringed end over the boot that connects to the spark plug. The other end is covered with a metal circle for easy installation.
Package includes: 8 pieces. Use gloves and long-sleeved clothing before installation to prevent stone fibers from falling on your body.