12 Pack Acoustic Foam Panels, Sound Absorbing Panel Hexagonal Beveled Edge Sound Panels, High Density Wall Tiles[Special Design Appearance]: Unique exclusive 3D hexagon design. It adopts beveled edge, which can not only absorb unnecessary echo, but also play a role in decorating the wall surface, better than acoustic foam. [Better sound quality]: Sound-absorbing panels eliminate unwanted sound and make other sounds clearer. At 5000Hz - 2000Hz, the average absorption coefficient: 0.8, NRC: 0.9. Installing enough panels correctly in one space can significantly reduce noise, eliminate sound pollution, and improve speech intelligibility. [High Density & Eco-Friendly]: Made of high quality material. The sound bars are odorless. Fire Retardant Grade: B1, inhales and inhales safely, making it great for any place in your home or studio, safe for adults, children and pets! [Easy to Cut & Install]: Easy to cut with a sharp knife, you can create different styles of art wall decoration in your favorite space! Easy to install, simply attach double-sided tape or glass adhesive (not included) to the back of each sound proof padding and adhere to the desired position, and if you want to remove, simply detach each panel and reinstall in the new desired location without