This material combines an acoustical for fabric for great sound quality and a stiffener (1/16" thick plastic honeycomb type material) for simple installations. These customized panels are perfect for concealing any size of speaker in entertainment centers. The acoustical fabric retains excellent sound quality. The panels fit like a pane of glass and form a flat surface to hide speakers. Cuts easily to any shape. You'll receive a piece measuring 35" by 33-1/2". Black.