Feature This Unit equipped with square lift column offers his more powerful momentum to support the heavier weight and keep balance consistent at all the direction. As well, it can be controlled by the touch pad of table unit and the optional foot switch. Specification Chair External Dimension 640(W)*720(D)*1080(H) Vertical Travel Height Min.475 ~ Max.725 Ascending / Descending 250mm, 20 mm/sec Allowable Loading Weight 160kg Input Power AC110 or 230V / 50 or 60Hz Power Consumption 150VA Product Weight 42kg