Designed to be a safe and effective tool for the maintenance, service and repair of small to midsize tractors with component sections weighing up to 4,000 pounds. The AT30000 includes both a stationary base and a rolling base allowing you to move the two sections of the tractor easily. Both the tall and short spacers as well as the 2 ton screw jacks provided with the splitting system allow for fine height adjustment. Has a height range of 11.50" to 30".