【SPECIFICATIONS】: Size - 12 X 12 X 2 inches, pack of 12; Coverage - 12 square feet; Weight - 0.12 lbs per panel; Material - Thick and high density polyurethane; Design - Periodic groove structure enhances both functionality and aesthetics,【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 & MINIMAL WALL DAMAGE】: Our acoustic sound panels are very soft and flexible, making them effortless to cut with a knife and install. You can quickly set up these panels using the TroyStudio double-sided tape (search B0D498LQCN, sold separately), 3M spray adhesive or small screws. Compared to self-adhesive foam, installation using an external adhesive leaves minimal foam residue on your walls upon removal