Specification: Material: aluminum foil. Color: silver. Recommended installation temperature: -10 ° C ~ + 60 ° C. Resistance Range: -40 ° C ~ + 149 ° C. Water resistant and fire resistant: Yes. Size: 200x50cm. Thickness: 7 mm / 10 mm / 15 mm. Feature: 1. Flexible, crush resistant, non-toxic and odorless (will not smell), creates mold and is resistant to mold vapor barrier. 2. It can evenly distribute engine heat to avoid overheating of the cover. 3. Keeps your interior cooler in summer and warmer in winter. 4. Reduces unwanted sound and most vibrations. 5. Effectively blocks 97% of radiant heat transfer. Installation: 1. Clean the dust and oil that covers the place you want. 2. Trim the size of the engine cover long before coherence. 3. Remove the insulating paper and stick the thermal pad into the sore throats. 4. Finally, click on it carefully, especially pay the attantion to the nearest theaaquare and traiang concave-convex position. Package Included: 1 x Sound Absorbing Device