24 Pack Acoustic Foam Panel Wedge Studio Soundproofing Wall Tiles 12" X 12" X 1"You Will Receive 24 single Tiles MADE IN USA Polyurethane foam to remove the vocal, acoustic insulation for industrial and domestic use, suitable for sound studios. Unlike polyurethane foam, fiberglass and rock wool are health risks. The use of glass wool and rock wool require the use of protective gloves to prevent skin problems is. Consumer imports- The product can be used as acoustic cover inside the walls, ceiling and door various places such as theaters or movie theater, sound recording studios, and busy, crowded places such as gyms, subway stations, offices, schools, ... be used. Suggested great for voice recording and send it to YouTube. 1 inch wedge foam provides moderate sound control on walls or ceilings. This product provides strong noise reduction , where moderate deadening is desired. 1 inch wedge foam is most effective on mid-to-high frequency ranges. Our foam can be aligned perfectly with the next piece to provide professional installation. Use: Perfect for use on walls, ceilings, doors, windows etc. Anywhere to help block sound and prevent echoes inside the room.Color: Charcoal Very Good Quality High NRC !! Product Care: Occasional Vacuuming of Dust.