[Environmental Protection and Safety] Made of high-quality environmentally friendly material, these studio foams are durable and effective, with no health risks and are safe to use. [Noise Absorption] Sound foam panels can suppress and disperse the low and medium sound waves in the room to minimize interference and increase sound quality. There are 50 packs of these soundproofing foam sheets, each sheet is 0.6 square feet, 1 inch thick acoustic sheet, and 12 packs cover an area of 0.6 square meters. [Easy to Install] These studio sound-absorbing panels can be used as acoustic coverings for walls, ceilings, and doors, and can be easily fixed with tape, pins, screws, or glue. [Wide Range of Applications] Soundproofing foam boards are very suitable for recording studios, vocal booths, control rooms, and also very suitable for theaters, professional cinemas, concert halls, etc. color: Black Material: Polyurethane size: 30 x 30 x 2.5 cm Contents: 50 x Acoustic foam sheets Only the above content, other products are not included. Note: Light and different displays may cause the color of the item in the picture to look a little different from the real thing. The allowed measurement error is +/- 1-3 cm.