[Fashion]: 230kg/m3, the most compact sound card on the market,the stylish panel design doubles as the decorative wall art of your favorite space, allowing you to leave countless beautiful memories in a comfortable environment.[High Density and Eco-friendly]: Made of polyester fiber cotton,which is fire-retardant and eco-friendly. It is both safe to breathe in and Press, making it great for any location in the home or studio, it's safe for adults, kids, and pets![Easy to Install]: They can be used as acoustic cover for walls, ceilings and doors, just attach it with nails,glue or adhesive taps.Easy to shape and cut to size, altering 't affect performance.[Widely Usage]: Our sound dampening foam panels are great for KTV, recording studios and office,also perfect for vocal booths, control rooms,home theaters, cinema, concert , dog kennels, rehearsal rooms and more.[Effectively reduce noise]: For professional acoustic control, sound dampening, acoustic treatment, noise reduction - Reduce waves, reverb and flutter echoes in smaller to medium sized rooms.Improving your audio quality instantly by reducing background noise and .Colour:Silver-grayMaterial:Polyester cottonSize:30x30x0.9cmPackage Contents:20 x Sound absorbing 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.