Unique rotating dual wall & desk system. Patented rotating mechanism to effortlessly change from portrait to landscape use. Glare-free, polypropylene sleeves with rugged frames. Not expandable. Frames come in assorted colors (2 ea red, black, dark blue, green, yellow). Includes desk stand / wall adapter, 10 sleeves & 10 snap-on tabs. Width: 21.25"; Depth: 15.13"; Height: 16.5"; Sheet Capacity: 20.