Deadening (vibration damping material) Black Butyl Approximately 10cm x approximately 5cm, approximately 2.3mm 50 sheets As a bonus, a few pieces of irregularly sized scraps are included. Vibration damping type Since it's an adhesive butyl tape, you can use it immediately after peeling off the backing paper. It's an easy-to-use size, perfect for point vibration damping. *Applying it to the ceiling makes the sound of rain quieter. (Using sound-absorbing material separately makes it even quieter) *When applied to the door, the thin sound when closing changed to a more solid sound (when applied to a kei car). *The sound quality of the audio has changed. Please note that there may be slight size variations due to hand cutting. Individual packaging is done in units of several sheets to prevent the adhesive surfaces on the sides from sticking together as much as possible.