Deadening (vibration damping material) Black butyl Approximately 10cm x approximately 5cm, approximately 2.3mm 80 sheets As a bonus, a few pieces of irregularly sized scraps will be included. Vibration damping type Since it's 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 will quiet the sound of rain. (Using sound-absorbing material separately will make it even quieter) *When applied to a 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 variations in size due to hand cutting. Individual packaging is done in units of several sheets to minimize the adhesion of the adhesive surfaces on the sides.