STEELCASE super heavy duty hydraulic lift desk with continuously variable height adjustments. The high-density particle board (?) is 1 1/2 " thick and would support a vice if the unit is used as a workshop table. The table is shown at its lowest height and will rise to well above comfortable sitting height. It is a significant weight requiring at least 2 strong men to lift it. It has been trouble free and excellent for years but now, rather suddenly, the hydraulic seals need to be replaced for the unit to be fully functional. The unit can be raised manually and blocked into a position if the hydraulics are not repaired. The front drop-down/raise up surface works perfectly and is air or hydraulic cushioned.