Specification:Material:PolyurethaneShape: SquareSize(L*W*H):25 x 2 5x 5 cm/9.8″ x 9.8″ x 1.9″Color:Red/Blue/Yellow/Purple/BlackFeatures:1. Sound absorption and noise reduction.2. For use in vocal booths, control rooms and studios.3. Environmental protection, safety, acoustic design and beautiful appearance.4. Effective against standing waves and flutter echoes in most small-to-medium sized rooms.5. National flame retardant B1 grade,strongly flame retardant performance, automatic put out from the fire when leave the fire.Package Included:1 x Sound Insulation Studio Foam TilesNotes:Manual measuring, please allow 1 ~ 5 mm error,thank you.