About this item Beneficial for Your Work & Health: The sit stand desk frame can be raised or lowered within the range of 27.6''-45.3'' to help you find the most comfortable position for all day comfort. Variable height design alleviates back fatigue and pain caused by static posture or prolonged sitting, thus improving your work efficiency. Foldable Crank for Convenient Adjustment: Convenient crank system allows you to switch between sitting and standing modes with minimal effort. It can be installed on the left or right side, which maximizes the satisfaction of different people's needs. When not in use, it can be also folded under the desk for better using experience. Durable Construction with Great Stability: Made of thickened and heavy duty steel frame, the standing up workstation base provides added support and ensures extraordinary stability for long-lasting use. It can bear maximum load up to 110 lbs. More, the adjustable foot pads keep the frame steady even on an uneven floor. V