Fire sleeve is a tubular sleeve and made of fire-resistant materials. This firesleeve is designed to protect wires, cables and hoses from fire and heat damage. 

Fire sleeves offer protection against fire damage. Wires, cables and hoses can all fail when exposed to heat. The heat from a nearby fire can burn through wire and cable jackets, thus damaging the conductors. Fire sleeves are designed specifically to withstand heat.

No matter in automotive or airplane, machine, when placed inside of a fire sleeve, cables, wires and hoses can withstand more heat without succumbing to damage.