4-Pack Large Acoustic Panels, 0. 36In X 23. 6In X 47. 2In, High-Density Soundpro
36In X 23. 2In, High-Density Soundproof Foam Panels, White. Designed for ultimate soundproofing, these high-density foam panels feature an impressive NRC coefficient of over 0.95, effectively absorbing both high and low-frequency noise.