This is a soundproofing board, which are made of good polyester fiber 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: -Size:50.00X25.00X5.00cm/19.65X9.82X1.97in - Excellent acoustic treatment for live sound processing on bedroom or office walls, suitable for recording studios, control rooms, office home studios. - , safe to breathe and touch, perfect for any location in the bedroom, safe for adults, children and pets! - Safe and durable material, served as both wall decor and protection for its well absorb sound effect. - Soundproofing panel has strong flexibility and impact resistance, and is commonly used in stadiums and football fields. - Lightweight soundproofing board, nonslip and wear-resistant, very simple and convenient to use. Package list: 3 x Acoustic Panels