Engine often gives out noise, with it sealed engine is built, engine won't give out noise, OK still and dustproof waterproof. Sealed without aperture, reduce the noise of engine, make surface of whole journey quiet tone waterproof still when you drive. R | | | RDust is eaten outside window of a lot of cars much, drive the abnormal knocking that can have Dong Dong Dong calls in, with it gush comes out, handle abnormal knocking, drive sound insulation. RLengthen rain to blow piece life is as long as 3 times above, a travel that assures you is safe, let you need not change again often rain is brushed, managing not little cost, counter-purchase rate freeboard. On card aperture, like look at and distributing a car high, crack cannot be found inside whole vehicle, time grows to still can give off light. ROne is equivalent to 1 bottle of glass water, can dissolve clean, without remain, decontamination ability is good, still can use when the fluid that wash a car. Sound insulation the car uses crack waterproof and dustproof prevent noise effect very assist, can bend arbitrarily, firm and durable, practical strong. Automobile body and vitreous appearance won't be marred in clean process, won't appear more petty nick, let cleanness and maintain neither by accident oh. This firm money is reached with the intense content such as the cobble inside chamfer of relaxed eliminate tire, glass sundry, reject to become flat high speed travel is safer