Double Duty Space Dividers feature porcelain enameled steel Pro-Rite markerboard writing surface, a full length tray and a 2" map rail at top and a vinyl bulletin board at bottom on one side. The reverse side has a vinyl surface for notices, artwork or assignments. Heavy-duty aluminum base with sturdy locking casters assures maximum stability. Also available with Steel-Rite chalkboard writing surface, call for details. MARSH ORDERS TOTALING OVER $1000.00 SHIP FREE.