Description:1. Easy, slip on design, even 90 angles.2. Double-Layer high temperature fiberglass.3. Withstand 1200F direct continuous heat.4. Non-Flammable, protect against chemicalsresist water.5. Help prevent burn-through, hardening & cracking of boots.6. Keep your wires & boots cooler in a high temperature environment. Specification: Material Fiberglass Color Black Temperature Rating 1200 F Size 19X2.5cm Package Included:8 XSpark Plug Wire Boot