[Auxiliary stand board OPB-S set] Piano floor reinforcement board quiet/soundproofing/thermal insulation/flat board FBS (brown)

Quality: Punched carpet on particle board, 3-layer structure of white cucumber on the floor Size: Approximately 160 x 60 x 2.5 cm (measured in brushed state, approximately 42 cm in the center) Particle board and punch carpet are made of formaldehyde-resistant products Depth 70 cm The type is compatible with soundproof insulators.