Protect wiring and electronics which are under hood and extend engine life. It can use in extreme temperature swing environments. And it is light so that you can easy to use and remove. Features: Serviceable, lightweight, and wear-resistant. High temperature resistance and low thermal conductivity. Keep the engine compartment cooler, protecting plastics parts, hoses, wiring etc from dry rot and early breakdown. Highly effective material for firewalls. Can be used in fuel cells, engine covers, under hoods etc anything or area that needs protections from heat. Specifications: Color: silver, golden (optional) Size: S, L (optional) Material: glass fiber Length: Small: 5.0m Large: 10.0m Roll size: Small: 55 * 50 * 50mm / 2.2 * 2.0 * 2.0in Large: 60 * 60 * 55mm / 2.4 * 2.4 * 2.2in Item weight: Small: 67g / 2.4ounce Large: 108g / 3.8ounce Package size: Small: 60 * 60 * 60mm / 2.4 * 2.4 * 2.4in Large: 70 * 70 * 60mm / 2.8 * 2.8 * 2.4in Package weight: Small: 72g / 2.5ounce Large: 118g / 4.2ounce Packing List: 1 * Heat Shield Tape