Pack of 12 You Will Receive 12 single Tiles ( AS SHOWN IN THE PICTURE ) 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. 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.Use: Perfect for use on walls, ceilings, doors, windows etc. Anywhere to help block sound and prevent echoes inside the room. Color: Charcoal Class A Fire Retardant Very Good Quality High NRC !! Product Care: Occasional Vacuuming of Dust. Due to shipping difficulties, we are unable to ship to the following areas: American Samoa, Puerto Rico, Guam, North Mariana Islands, U.S. Virgin Islands and other US Minor Outlying IslandsFEEDBACK POLICYOnce you have received your item and are pleased, please leave us a positive feedback and we will do the same for you! We use an automated system so that no one is skipped. If you are not happy for any reason at all, please contact us prior to leaving feedback so that we can fix any issue you may have!