Soundproofing and vibration-damping mats used under a drum set in an apartment. Purchased from a soundproofing and vibration-damping specialty store, so they are effective. 100cm x 50 cm - 2 sheets 100cm x 25 cm - 2 sheets (One sheet has a 5cm chip in the center of the outer edge) Thickness: 2cm - Color: Black - Material: Rubber - Application: Soundproofing, vibration damping, sound absorption Packing size: Length: Approximately 51cm, Width: Approximately 102cm, Height: Approximately 7cm Weight: Approximately 50kg * Hand-delivery is also possible. The location is near Narimasu, Itabashi-ku, but delivery is also possible (fees apply depending on the distance). * This is the final price reduction, so please understand. Thank you for viewing.