ATS Acoustic Panels are wrapped in 100% polyester that is Fire Rated Class 1 or Class A per ATSM E84. These panels are 24" x 48" x 1" and act as sound dampening wall décor with a Noise Reduction Coefficient (NRC) of 0.80. This panel is odorless, dustless, and made from 100% polyester and is 100% recyclable. They are ideal for wet or damp environments like pools, spas, athletic centers, and gyms or humid climates. ATS panels are professional studio quality products designed to absorb sound waves and sound proof your home, office, or any room. These panels do not dent and will stand up to quite a bit of wear and tear. These all-around panels are great for professional musicians, recording studios, audiophiles, nurseries, offices, schools, gymnasiums, and more. The included Rotofast snap-on anchor mounting hardware makes installation quick and easy on most common construction materials, such as drywall, concrete, or wood walls. Polyester panels are not wrapped in acoustic fabric, making them easy to clean and maintain.