Made of high quality eco-friendly polyurethane foam, studio foams are durable and effective, no health hazard, safe to use. Acoustic foam panels feature a classic design that provides excellent soundproofing and echo absorption. product provides strong noise reduction, where moderate dampening is desired. Ideal for spot sound treatment on the walls of your studio or office - For use in recording studios, control rooms, home offices, home entertainment theaters, home offices The studio foam of high quality material can maintain its sound insulation function permanently. In terms of cleaning, you just need to dust them occasionally. Open the vacuum packaging, place the foam panels in a ventilated place for about 24-48 hours. Color: Black Material: Polyurethane Size: 30x30x2.5cm Package Contents: 24x Soundproofing Foam Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little