Size: 2" x 12" x 12" (approx) ; Noise Reduction: 80-90%; Color: Charcoal For decorative purposes, may be placed side by side with wedges, pyramids, eggcrates and bass traps. Eliminates Standing Waves And Flutter Echoes ; Reduces Unwanted Reflections; Reduces Unwanted Reflections Good for studios, recording studios, vocal booths, control rooms. Product Care: Occasional Vacuuming of Dust