Industrial machine roller dollies with highest reliability, durability and safety standard. Front dolly comes with thrust bearing supported turntable allowing freely steering without needing to stop and reposition to turn. Pull by hand or attach to forklift for towing. Rolls heavy loads easily from point A to point B with less effort. The dolly system won't slip out from under the load - even under pulling and tugging. Distance between rear dollies is adjustable (use of connecting bar is recommended but optional).