Vibrants ExtremeShield 1200 Flexible Tubes provide easy slip-on installation and outstanding protection for your wires, hoses and cable from temperatures up to 1200 deg F (650 deg C). This line features an Aluminized heat shield that is laminated to tightly braided fiberglass insulation which provides superior protection from radiant heat. NOTE: This tubing is not expandable, so be sure to measure you application accurately.