[Superior Soundproofing]Made of 215kg/m3 high density and eco-friendly polyester fiber, our soundproofing foam have an great advantage of reducing and absorbing noise, it is both safe to breathe in and touch, too. Besides, the sound proof foam panels do well on the test of noise reduction, achieving of NRC 092 which is most of the sound panels on the market. [No More Worrying About 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 because they are lightweight. Easy to shape and cut to size, altering won't affect performance. [Safe and Eco-Friendly]Our sound panels are sound proofing and flame retardant, odorless, non-slip, corrosion resistant, and fade resistant, therefore, it's safe for adults, kids, and pets! Using our studio foam panels on the ceiling, behind the TV or under your rug which leaves countless beautiful memories in a comfortable environment. [Wide Applications]Excellent acoustic treatment for multiple occasions, not only for spot treating sound on walls in your studio and office but also for using in recording studios, control rooms, offices home studios, home theaters, home Offices. In addition, our sound proof foam panels are also a good idea for wall decoration because of the various colors options. [Good noise reduction] If you are mixing in a studio, you must lower the ambient sound. Unnecessary noise during recording will destroy it. The sound-absorbing board can absorb the sound produced by low frequency, middle frequency and high frequency, which is very suitable for recording. size:30 x 40 x 09cm Material:Polyurethane fiber cotton colour:white Package Contents: 12 x Acoustic Panels Only 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.