Ribsy wallcovering has a deep ribbed texture created with thick wool felt strips oriented on edge in alternating heights. This acoustic tile-based system creates wall-to-wall installations with subtle color variation between felt strips to create rich depth and texture. The easy-to-install 6-inch x 24-inch tiles are available in 50 colors of natural 100 percent wool felt on a cork backing. The tiles provide a Noise Reduction Coefficient (NRC) of 0.35 to work its sound-softening magic in any space.