Sound Absorbing Material, Soundproof Sheet, Sound Absorbing Panel, Hard Sound Absorption, Sound Absorbing Board, Soundproofing, Noise Reduction, Insulation, Moisture Proof, Wall and Floor Compatible, Ideal for Soundproofing and Acoustic Treatment, Hexagonal, Double-Sided Tape on the Back, 30cm (H) x 26cm (W) x 0.9cm (T), Pack of 12, Gray R11252 ‐ Mercari: Shop from Japan