[Environmental protection and safety] Made of high- environmentally- material, these studio foams are durable and effective, without health risks, and are safe to use.[Noise Absorption] sound foam panels can suppress and diffuse the low and medium sound waves in the room to minimize interference and increase sound .There are 50 packages of these sound insulation foam panels, each tile is 0.6 square feet, 1 inch thick acoustic , and 12 packages cover an area of 0.6 square .[Easy to install] These studio sound-absorbing panels can be used as acoustic covers for walls, ceilings and doors, and can be easily fixed with , , screws, or glue.[Widely used] sound insulation foam board is very suitable for recording studios, vocal kiosks, control rooms, and also very suitable theaters, professional cinemas, concert , etc.colour:BlackMaterial:Polyurethanesize:30 x 30 x 2.5cm Contents:50 x Acoustic Foam PanelsOnly the above content, other are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.