[Excellent sound insulation]: Made of Polyester cotton material, 300 pounds per cubic yard, better sound insulation than sound insulation foam 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 [STYLISH]: 230kg/m3. Stylish beveled panel design doubles up as a decorative wall art in your favorite space, which allows you to leave countless beautiful memories in a comfortable environment. [Improved Sound Quality]: These noise-insulation panels are multi-purpose, it can make offices quieter and make audio recordings cleaner. And can be used for professional studios, rehearsal rooms, concert , podcasting, churches, home theaters , vocal booths, home studios, offices, man caves and more. [EASY TO INSTALL]: Both general purpose spray adhesive and double-sided tape work. Simply attach spray adhesive or double sided tape (not included) to the back of each panel and adhere in the desired position. [WIDE APPLICATIONS]: Great for spot treating sound on walls in your studio or office - For use in recording studios, control rooms, Offices home studios, home entertainment theaters, Home Offices. Easy to shape and cut to size, altering won't affect performance. Or use it on the ceiling, behind the TV or under your rug Colour:Silver gray Material:Polyester cotton Size:30 x 30 x 0.9cm Package Contents: 12 x Soundproofing Foam 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.