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.Package Includes: Metal Wall Bracket; Mounting Hardware and Template; (5) Sleeves; (5) Snap-On Tabs