【SPECIFICATION】 : Size - 16 x 12 x 0.5 inches, pack of 6; Covering 8 square feet; Weight - 0.46 lbs per panel; Density - 9.4lb/ft3; Material - 100% Polyester Fiber,【OUTSTANDING ACOUSTIC PERFORMANCE】: Elevate your sound experience with our thickened felt sound dampening panels. Their surface boasts numerous damping pores thanks to their high density polyester fiber material, effectively absorbing unwanted sounds. Great at cancelling room reverberation, echoes, standing waves, and blocking noise; NRC (noise reduction coefficient): 0.9. Average absorption coefficient: 0.77,【ELEGANT DECOR & COLLISION PROTECTION】: Unlike traditional acoustic foam panels that may oxidize and change color over time, these felt studio panels keep their color vivid all the time. Ideal for creating an aesthetically pleasing audio-visual environment. Additionally, due to their great thickness and resilience, they can provide cushioning for surfaces like walls and floors, serving as anti-collision wall padding for protection. Widely used in kindergartens and schools for this purpose,【ECO-FRIENDLY & ENDLESS APPLICATIONS】: Our acoustical felt tiles are crafted from 100% polyester fiber. They are non-toxic, odorless, formaldehyde-free and flame retardant(Class B1), providing safety assurance for your family and pets. Excellent acoustic treatment for office, workspace, home studio, home theater, vocal booth, recording studio, practice room, music room, podcasting, gaming room, living room, classroom, car audio, bedroom, apartment, door, wall, ceiling and more,【EASY TO CUT/ INSTALL & MINIMAL WALL DAMAGE】: Our acoustical sound panels are easy to cut with a knife and install. You can quickly set up these boards on walls/ceilings using construction adhesive, TroyStudio double-sided tape (search B0D498LQCN, sold separately), or small screws. Compared to self-adhesive panels, installation using an external adhesive causes minimal damage to your walls upon removal