12 Acoustic Panels, Acoustic Acoustic Bricks for Echo and Bass Isolation, for Wall Decoration and Acoustic Treatment [Excellent Sound Insulation]: Made of high density polyurethane, 300 pounds per cubic yard, sounds better than acoustic cotton insulation Sound insulation, flame retardant, odorless, anti-slip, anti-corrosive and anti-fading. [Fashionable]: 250kg/m3, the stylish panel design doubles as decorative wall art for your favorite space, allowing you to leave countless beautiful memories in a comfortable environment. [High Density and Environmentally Friendly]: Made of flame retardant polyurethane material, safe for breathing and contact, perfect for any location in the home or studio, safe for adults, children, and pets [Easy to Install] General spray adhesive and double-sided Any tape will do. Simply apply spray adhesive or double-sided tape (not included) to the back of each panel and stick it where you want. [Wide Application]: Ideal for live processing of sound on studio or office walls - for use in recording studios, control rooms, office home studios, home entertainment theaters, home offices. Easy to shape and cut, modifications will not affect performance. Or use on the ceiling, behind the TV or under the carpet Color: Black Material: Polyurethane Dimensions: 30x30x0.9cm Package Contents: 12 x Soundproofing Foam The above package contents only, other products are not included. Note: Lighting shooting and different monitors may cause the color of the items in the pictures to be slightly different from the actual item. The measurement allowance is +/-1-3cm.