Board, Sound Insulating Material, 30cm x 30cm x 0.9cm [Magic Double-Sided Tape Included] Pattern, Color, and Quantity Selectable [Square Brown, 84 Pieces] Flame Retardant, Tideproofing, Noise Control, Interior Decoration, Musical Instruments, Piano Room

[Sound-absorbing material✨Product specifications] AutoGo sound-absorbing material size: 30cm x 30cm x thickness 0 If you have any problems with your AutoGo sound-absorbing materials, please feel free to contact us. We will respond in good faith. Let me do it.)