QueuePro stanchions offer the durability of stainless steel construction and a heavy duty cast iron base. Longer belts require fewer stanchions saving on purchase cost and set up time. At 13â this modelâs belt is 70% longer than the industry standard 7.QueuePro 250, Polished Stainless Steel, 13' Dark Green belt The long service life of these stanchions makes them ideal, ideal for high traffic areas or where the stanchions are moved frequently.