Titanium 1800 Degree Spark Plug Ignition Wire Heat Boot Protector Cover Color: Black/Titanium/White/Black/Green/Red/Purple Description: Sleeves are 152mm (6") long. Diameter of opening on ring side is 18mm (0.7"). Open side is 25.4mm(1") without stretching the product. Made from titanium fibers, heat rated up to 2000°F (1093.3 C) continuous and 3000°F (1648.9 C) of radiant heat Fit is universal for most angled and straight boots Can be used from ultimate race cars, street vehicles, to motor homes. - Helps reduce misfires - Enhance Performance - Extends life of wire & boots - Non-Flammable - Resists damaging chemicals - 25% stronger than fiberglass Boots - Custom look of carbon fiber - Looks great ** IMPORTANT INFORMATION ** Picture purely for illustration purposes only. * Professional Installation Highly Recommended! No instructions included! * Price List/Catalog is available when needed For more information, please visit our website at www.kosda.net