Acoustic panels for wall, door and ceilings. Perfect for individuals to reduce and absorb noise, waves, echoes, reverb and flutter echoes.Made of 215kg/m3 high density and eco-friendly polyester fiber, our soundproofing foam is both safe to breathe in and touch.Our sound proofing padding for wall are excellent at improving sound clarity, achieving an average absorption coefficient: 0.8, the best choice for absorbing the noise generated by low frequency, middle frequency and high frequency. Meanwhile, the sound proofing panels are flame retardant, odorless, non-slip, corrosion resistant, and fade resistant, so it's safe for adults, kids, and pets Excellent acoustic treatment studio foam panels for multiple occasions, not only for spot treating sound on walls in your studio or office but also for using in recording studios, control rooms, offices home studios, home theaters, Home Offices.No special tools or materials are needed for installation You won't have to wrestle with to get it where they need to go, attaching the acoustic foam panels with nails, spray adhesive or double sided tape (not included) easily. Our sound absorbing panel will stay on a variety of surfaces tightly. Easy to shape and cut to size, altering won't affect performance.Colour: grayMaterial: polyester fiberSize: 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 cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.