[Fashionable Appearance]: This unique hexagonal sound insulation board is designed with beveled edges, which can not only absorb unwanted echoes, but also play a role in wall surface decoration.[Easy to cut and disassemble]: Easy to cut with a sharp knife, if you want to disassemble, just disassemble each panel and re-install to the desired location, there are no holes in the wall The packaging does not have adhesive, you need to purchase the type of adhesive you need separately.[Environmental protection and indoor ]: The sound panel is odorless, non-toxic and free of formaldehyde. Rating: B1 - Live sound processing on the walls of a recording studio or office, suitable for recording studios, control rooms, office home studios, home entertainment theaters, home offices.[High Density and Environmental Protection]: Made of 100% polyester fiber, retardant, safe, breathable and touch, perfect for any location in the home or studio, safe for adults, children and pets [ Acoustic Quality]: These soundproof panels are multifunctional and can be used in professional studios, rehearsal rooms, concert , podcasts, churches, home theaters, vocal booths, home studios, offices, male private spaces, kennels , sundries wardrobe, etc. Other sounds can be made clearer by eliminating unwanted sounds using an absorbing panel.color:BlackMaterial:Polyestersize:30 x 30 x 0.9cmPackage Contents:12 x Acoustic PanelsOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.