Available in sets of 2, Towbar measures 8 ft long and fits securely into ISO container corner brackets immediately above swivel Towcasters. Featuring polyurethane-on-cast-iron wheels, Towcasters come in 10 in. and 12 in. diameters with load capacities of 22,000 lb and 26,400 lb, respectively. Towcaster/Towbar sets are designed for power towing up to 5 mph and are suitable for moving empty or evenly loaded containers up to 40 ft. in length.