The National Public Seating Dolly for Series 8100 Chairs makes it easy to safely move and store NPS 8100 and 9000 Series chairs. This sturdy 16-gauge black powder-coated steel dolly holds up to 10 chairs. The four swiveling polypropylene casters roll easily, even over carpet, allowing users to clear out or set up a room in a matter of minutes. Each caster has a 66 lb. weight capacity for chair dolly with a total weight capacity of 265 lb.