Muslady 4 PCS 30 * 18 * 18 cm Acoustic Foam Panels High Density

High-density design, can effectively block out unwanted noise, eliminate reverb and echoes.|Made from environmentally-friendly foam, has great sound absorption, fireproof and burning retarding properties.|Wide application, can be used at home, studio, theater, cinema, office or other place that need to reduce noise and prevent fire.|Easy to use, just put them between walls and ceilings, mounting them horizontally is also a good idea.|Exquisite workmanship, unique bass traps design, lightweight and sturdy, this is a nice choice for you.