Pro Material: 100% Polyester Fiber high density acoustic panels Safe & Eco-friendly material, This absorbing sound panels is a simple and classic wall decoration, 12 X 12 X 0.4 Inches Square soundproof panels with beveled edge, 12pcs/packFeatures: This professional sound insulation panels can reduce most of the noise, 0.4Inch thick acoustic panels can effectively block sound waves, which is not only a noise reduction panels device but also a wall art decorationEasy to Install: the absorbing sound panels set comes with strong tape no additional purchase, You can easily glue the noise reduction panels to the wall without the need for any toolsMultifunction: Our high quality acoustic panels is used as soundproofing equipment in various places, it's a home theater acoustic panels reduce the sound of the TV, and it's music/recording/ gaming/anchor/nursery soundproof art panels to reduce and block outside noiseRelative to other materials of acoustical treatments, Polyester Fiber Acoustic Panels has better sound-absorbing effect, is more decorative, environmentally friendly, stable, impact-resistant, easy to maintain, and has a longer service lifetype:AColour:blackMaterial:polyester fiberSize: 30 x 30 x 0.9cmPackage Contents:12 x Acoustic PanelsOnly 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.