Units are lightweight yet are built for heavy duty use.All ZATJ series are fast, smooth, and efficient due to their all-steel wedge construction.Includes a flow control valve to prevent the ram from sudden falls.Quick lift mechanism allows a shortened ram lifting time without load.Specially processed air pump for low-noise operation.2 large rubber-tire wheels and 3 position locking T-handle make this jack easy to fit into any space.Country of Origin: Japan