This rugged, low riding cart can be towed from either end using our AB42000 series container towbar while carrying containers weighing up to 40,000 lbs. The dual casters at each corner will work best on prepared surfaces, but they can roll over small obstructions with the durable polyurethane tread, which will outlast rubber treads many times over. The cart has 4 twistlock connectors designed to secure ISO freight containers or ISO configurated shelters.