Dakota Panels are 2" thick soundproofing panels that can be affixed direct to a wall or ceiling assembly to deaden sound wave reflections within a room. These panels absorb up to 80% of the sound striking its surface. They are dimensionally stable and will not shrink or warp, they will not rot or corrode. The material is an all black fiber product encapsulated in a black mat surface, designed to be anchored to a black ceiling. Panels are sold in 4' x 8' sheets measuring 2" thick in packs of (4).