Specification: Material: Aluminum foil Color: Silver Recommended Install Temperature: -10C ~ +60C Resistance Temperature Range: -40C ~ +149C Waterproof & fire-resistant: Yes Thickness: 5mm/7mm/10mm 100%New and high quality. Flexible, crush resistant, non-toxic & fragrance free (Will not smell), creates a mold and mildew resistant vapor-barrier. Can make the heat of the engine evenly distributed to avoid overheating the lid. Keeps your interior cooler in the summer and warmer in the winter. Reduces unwanted sound and most vibrations. Effectively blocks 97% of radiant heat transfer. Installation: 1. Clean the dust and oil which cover the place you want to. 2. Trim engine cover size well before the coherence. 3. Remove the isolation paper and stick the heatinssulation pad in the angine covers. 4. Finally press it evently,especially pay attantion to nearby theaaquare and the traiang concave-convex position. Package included: 1 Pcs Sound Deadener Notice: Please allow 1-2cm error due to manual measurement and make sure you do not mind before ordering. Please understand that colors may exist chromatic aberration as the different placement of pictures.Products from NIUNIU's store