[Excellent sound insulation]: Made of high-density polyurethane, 300 pounds per cubic yard, better sound insulation than sound insulation foam Sound insulation, flame retardant, odorless, non-slip, anti-corrosion, and anti-fading. [Fashion]: 250kg/m3, 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 with flame Retardant polyurethane material, it is both safe to breathe in and Contact, making it great for any location in the home or studio, it's safe for adults, kids, and pets [Easy installation] Both general spray adhesive and double-sided tape can be used. Just stick spray adhesive or double-sided tape (not included) on the back of each panel and stick it in the desired position. [Wide application]: Very suitable for on-site treatment sound on the walls of studios or offices-used in recording studios, control rooms, office home studios, home entertainment theaters, and home offices. Easy to shape and cut, modification will not affect performance. Or use it on the ceiling, behind the TV or under the carpet colour: black Material: polyurethane Size: 30x30x0.9cm 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.