Reference systems designed especially for facilities, with sturdy metal brackets to withstand heavy use. Wall systems expand without limits by mounting additional wall systems side by side. Glare-free, polypropylene sleeves with rugged frames. Angled wall bracket holds sleeves open. Also use Durable 535900 to expand the VARIO Desk and Partition Wall Systems. Includes metal wall bracket with mounting hardware and template, sleeves and snap-on tabs. Magnetic System—Affixes to metal surfaces with strong, sturdy magnet on back of bracket, yet removes easily to protect confidential information. Assorted borders-one each: red, black, yellow, green and dark blue. Rack Style: Reference; Width: 20.78"; Depth: 6"; Height: 13".