Fire Sleeve solves the problem of heat and abrasions damaging fuel, transmission and brake lines and is a fireproof solution. Constructed from a high temperature resistant braided glass material, woven into a sleeve and heavily coated with 100% iron oxide silicone rubber, Fire Sleeve thermal insulator sleeve provides the ultimate in heat insulation and protection from direct heat up to 500F. Insulates wiring, hoses, oil / brakes / transmission lines & more Use for bundling & protecting hoses, electrical wiring, etc. Withstands 2000F of intermittent heat Size: 0.375 (3/8) inch x 25 feet