Designed specifically for mid-high frequency control, these 2' x 2' standard panels can be interlocked as needed to create a larger coverage area. The panels are 2" deep and are tuned to absorb frequencies above 200 hz. Panels come with all needed mounting hardware. Our panels are made with the highest quality Guilford of Maine fabric. Our off the shelf colors are gray, off white, and blue, but custom colors are available on request to match your studio space.