Create your own bold design by mixing 37 colors and rotating tiles to create unique patterns. The three-dimensional, folded design creates a hollow cavity that provides improved sound absorption to a near-perfect NRC rating. The patent pending Secret Trap Door design allows for easy installation using simply a drill and screws. The Frasch CUBISM™ Series comes in four unique shapes: PILO, POLY, PYRA and CLIF to create the perfect aesthetic.