This is a felt soundproofing board, which are made of good material, durable for use. Sound absorbing material reduces the reflection of the sound produced in the room and attenuates the sound. Suitable for home, school, gym, church, restaurant, office, etc. Features -Color:Black -Material:Polyester -Size:30.00X30.00X0.90cm/11.79X11.79X0.35in -It can not only reduce noise, but also play the role of home decoration. You can also cut at will, easily cut, give you better visual enjoyment. -Our soundproofing pads are made of quality polyester and are safe for your and can be used anywhere in your home. -Soundproof board with acoustic treatment, suitable for recording , office, game room wall, indoor reverberation, standing wave, echo. -You can install and remove them from your wall easily, very simple for you to use. -These soundproofing boards can be used as memo boards or soundproof boards for walls, ceilings and doors. Package list: 12 x Felt Boards