Expand your Sherpa reference system. Extension set includes a panel holder, 10 heavy-gauge polypropylene panel sleeves (20 viewing sides) with reinforced borders, 10 snap-on tabs, and a module which extends the base of the desk stand. NOTE: The extension is not a stand-alone system. Two each black, blue, green, red and yellow. Catalog Reference Rack Accessories Type: Panels; Number of Compartments: 10; Compartment Capacity: 20 Sheets; Color(s): Clear.

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