1.The product comes with a strong adhesive, at room temperature 0 degrees above without additional heating can be directly bonded. The higher the outside temperature, the stronger the construction, once pasted can not be removed, extremely strong!2. Installation: The back of the foam insulation film will be covered with a layer of release paper. In the installation process, you can easily tear off the surface of the release paper, and paste it on the surface of the product that needs to be sealed.3. Special attention If the owner likes engine noise, want to completely reduce engine noise alone on the hood this point, soundproof cotton is not so simple, engine noise is recommended to use soundproof cotton to make the hood and U-channel soundproofing effect needs to be used aluminum foil soundproof cotton board + aluminum butyl rubber shock absorber plate (18-25 or so), engine sound insulation is a very complex soundproofing engineering system, need to make Engine soundproofing is a very complex soundproofing engineering system, which requires the production of fenders, firewalls, dashboard U-channel and other soundproofing projects!4. The use of soundproofing pads location: A. hood B. roof C. door D. cockpit floor E. tailgate F. cedar wall and U-shaped wall J. front fender H. front and rear wheels.5. Packaging content: 1 roll car soundproofing anti-noise truck sound insulation cotton Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.