[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 press, too. [No More Worrying About Installation]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 because they are lightweight. Easy to shape and cut to size, altering won't affect performance. [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. [Safe and Eco-Friendly]Our sound panels are sound proofing and flame retardant, odorless, non-toxic, 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. Colour:black Material:Polyurethane Size:40 x 30cm Package Contents: 12 x soundproofing foams Only the above package content, other products are not included. Note: Light shooting 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.