3.3FT(1m/100cm) Heat Shielded Fire Sleeve Silicone Coated Fiberglass for Automotive Hose Lines & Electrical Wiring,5/8"(16mm) ID. Material:Silicone+Fiberglass. Widely used to protect and bundling fuel lines, hydraulic and oil lines from high temperatures and to prolong the life of wiring and hoses.