Environmental Protection and SafetyMade of high environmental protection materials, durable and effective, no health risks, safe to use. Sound AbsorptionSound-absorbing foam panels can suppress and diffuse medium and low sound waves in the room. These acoustic foam panels come in 50 packs, each piece is 0.6 square feet of 1 inch thick acoustic material, with 12 packs covering an area of 0.6 square feet. [Easy to Install] These studio sound-absorbing panels can be used as soundproof covers for walls, ceilings and doors, and can be easily fixed with screws, screws or glue. Wide range of usesAcoustic foam panels are perfect for recording studios, vocal booths, control rooms, and also great for theaters, professional cinemas, concerts, and more. Colour: Black Material: Polyurethane Dimensions: 30 x 30 x 2.5 cm Contents: 50 x Acoustic Foam Panels The above is only, no other content is included. NOTE: Color may appear due to lighting and different monitors. The appearance of the item may vary slightly from the actual item. The measurement allowance is +/-1-3cm.