Auralex"s SonoLite Bass Trap is a 3" thick, 2"x2" fabric-wrapped absorption panel that provides excellent low-frequency control in either a horizontal or vertical orientation where walls or walls & ceilings meet. The core of each panel is made of Auralex"s Studiofoam Pro acoustical foam; the panel is then carefully wrapped in a velour fabric to add a stylish appeal to accent any décor. Perfect to take control of the low frequency issues that are common in many home studios or theaters.Black color Black velour fabric and Studiofoam Pro core The back mitered edges allows for mounting in a 90-degree corner as well as flush to the ceiling