Rigid steel 'A' frames support rolled steel beams to provide a robust structure.Mounted on four 200mm diameter swivel polyurethane tyred castors.Supplied in knock-down form for erection on site.Yellow painted finish.SAFETY NOTE - mobile gantries are designed for positioning over the load prior to lifting. They should NOT be used for transporting the lifted load.Please note that because of the size and weight of these items carriage is extra, please enquire for details.