The 84 Series Double-Tiered Hanging Chair Dolly from National Public Seating is a great choice for saving time and space! Quickly set up, take down and store as many as 84 steel or plastic folding chairs with this durable, tubular steel, easy-to-assemble unit that comes with a brown powder-coated paint finish. Upward angled rods secure chairs with gravity in addition to end-caps. Four heavy-duty thermoplastic rubber 4 swivel casters allow you to move the dolly with ease, even through doorways. Each caster boasts a 330 lb. weight capacity for a total of 1320 lbs. Extension-bar kit for the 84 Series double-tier hanging chair dolly to raise the height enough to accommodate the NPS 3200, 1100 and 600 higher-backed chair series.