Blue Heat-Shielded Fire Sleeve for Oil Fuel Lines & Electrical Wiring (12mm X 1-Ft) Made of AS1072 standards silicone rubber coated fiberglass sleeve Ideal for protecting hoses, electrical wiring, oil and fuel lines Burn protection during under hood repairs and maintenance High-temperature, flexible insulating sleeving withstands 500 F continuous heat and up to 2000 F intermittent heat Resistant to hydraulic fluids, lubricating oils, and fuels, insulates against energy loss in piping and hosing