Features: *1. Recommended installation temperature: -10 C~+60 C, Resistance temperature range: - 40 C~+149 C *2. The sound insulation foam can be installed on the car to reduce vibration and shock *3. Reduce ambient wind, road noise and engine noise *4. Flexible, shatterproof, non-toxic, fragrance free (no odor), forming a mold proof and moisture-proof layer. *5. It can evenly distribute the heat of the motor to prevent the cover from overheating. Keep your car cool in summer and warm in winter Description: *1. Material: rubber+plastic *2. Shape: Square *3. Bending Strength: strong *4. Compressive Strength: strong *5. Form: fiber *6. Size: 200x50cm *7. Thickness: 3mm/6mm/10mm Note: *1. This product has a strong adhesive. It can be directly bonded at room temperature above 0 without additional heating. *2. The higher the external temperature, the more solid structures that cannot be removed after the paste is very solid *3. Noise experts suggest that you should not forget the vibration of the door while making sound insulation materials. Before pasting the acoustic absorption sponge, you can display some vibration plates with excellent effect. Generally, you need to be about 10 meters away from the three compartment car as a whole. *4. Special note: If the car owner likes the engine noise, you want to completely reduce the engine noise on the hood. The noise effect of the U-shaped slot requires the use of aluminum foil sound insulation cotton+aluminum plate, butyl rubber damping plate (about 18-25). The engine noise is a very complex engineering system sound. You need to make sound insulation works for wings, firewalls, and U-shaped instrument panel slots Package Includes: 1 x Sound Absorbing Sponge Roll