Specification Name: Phone insulation cotton Flexion resistance: Strong Compression resistance: Strong Form: Fibrous Size: 200x50cm Thickness: 3mm /5mm/6mm/8mm/10mm/20mm (due to size problems, 2 or more than 3mm and 5mm must be divided and shipped, and more than 1 of 6mm/8mm/10mm/20mm must be divided and shipped.) Weight: 0.4kg Characteristics: 1. This product is delivered with a strong adhesive, at room temperature greater than 0 degrees without additional heating can be directly stuck. The higher the exterior temperature of the dough, the more the solid construction cannot be removed after the dough is extremely strong! 2. Noise experts recommend doing sound insulation at the same time, do not forget the door of vibration, in the dough before cotton sound can be posted before a few vibration plates are excellent, general needs From all the sedan to three cars of about 10 meters. 3. Special note: if owners such as engine noise, you want to completely reduce engine noise alone on the hood on this cotton sound insulation point is not as simple as engine noise cotton recommended to hood and U-Slot noise effects must use sound insulation in cotton aluminum leaf + aluminum plate plate shock butyle rubber shock (around 18-25), engine noise is a very complex system of sound engineering , you must make wings, firewall, dashboard in the shape of a slit sound insulation engineering! Be careful: Please do not go wrong errors with a lot of time burning and taking the cook gas to burn, because cotton with a sticker does not draw the other car cannot reach the light conditions once the light conditions in addition to the metal parts inside the car can draw all Burning items, the owners offered not the electronic devices installed in private, the good use of cars. packaging included : 1pc 200cmx50cm acoustic insulation cotton