What's in the box:

1XStuffit Sound Proofing Sound Insulation Sponge for Car Doors Panel or Car Engine Cover For (2pc,4pc,6pc,8pc)

• Spec
  
  Enhance Sound Stability
  
  Road Noise Reduction
  
  Non-toxic,Non Smell
  
  Isolate Vibration
  
  Heat Insulation
  
  The four doors double, back trunk, chassis, four-wheels and wings board, engine cover
  
  Four doors:
  it forms a case body in the door board and helps the working efficiency of the horn and reduces the shock of the car door and the winds noise.
  
  Back trunk:
  it reduces the noise of the road and the steel; reduce the shocking of the air.
  
  Chassis:
  Foster the chassis and deduce the noise
  
  Four- wheels and wings board:
  it is the most efficient way to reduce the noise from the wheel
  
  Engine cover:
  it will separate parts of the noise from the engine and cut off the heat. Also it will prevent the aging of the engine cover and extend the working time