Electriduct 1/2" Thermo Armor Silicone Coated Fiberglass Fire Sleeve - Length: 10FT - Color: Red Size: 1/2" | Quantity: 10 Feet | Color: Red | (size is ID and is approximate, can vary +/- 3mm) Inner Sleeve: Fiberglass | Coating Material: Silicone | Operating Temp: -50C - 260C | Flammability: VW-1 Used to protect fuel lines, hydraulic and oil lines from heat and to prolong the life of wiring and hoses in case of fire so that critical systems can function longer in the aviation and marine fields Voltage: 7.0KV | RoHS Certified