【SPECIFICATIONS】: Size - 12 X 12 X 2 inches, pack of 18; Coverage - 18 square feet; Weight - 0.12 lbs per panel; Material - Thick and high density polyurethane; Design - Periodic groove structure enhances both functionality and aesthetics; With self-adhesive backing,【EXCEPTIONAL REVERB & NOISE REDUCTION】: Crafted with premium open cell foam and unique groove structure, these acoustic absorption foam panels are excellent at diminishing room reverb, echo, standing waves, and noise. When applied to walls and ceilings, they are highly effective in cancelling sound reflections to improve the sound clarity in the space. NRC (Noise Reduction Coefficient): 0.8; Average Absorption Coefficient: 0.77,【FLAME RETARDANT & ECO-FRIENDLY】: Our sound proof foam wall panels are flame retardant (California Technical Bulletin 117-2013), odorless and non-toxic. Their high density, durable, and high resilience design ensures long-lasting performance. Besides, these modern wave style foam tiles are perfect for interior wall and ceiling art decoration,【VERSATILE APPLICATION】: Our sound dampening foam panels are perfect for a wide range of acoustical treatments. Ideal for recording studios, home theaters, offices, music studios, gaming rooms, vocal booths, basement, streaming rooms, living room, bedroom, and more. They are an excellent choice for podcasters, YouTubers, and streamers to create a superior audio experience,【EASY TO CUT & INSTALL】: Our acoustic sound panels are soft and flexible. It's effortless to cut them to size using a knife. With a convenient self-adhesive backing, they are easy to mount