The National Public Seating Dolly for Series 8500 Chairs, an 11-gauge steel unit, loads at an angle to securely and impressively hold up to 40 of the NPS 8500 Series stack chairs for easy transport and storage. Featuring black powder-coated paint finish that will not chip, this dolly is built to last. It gets around 4 polyurethane casters (two that swivel) for easy mobility over nearly any surface. Each caster boasts a 165 lb. weight capacity for a total weight capacity of 660 lb., making the steel dolly super versatile.