Heavy-duty desktop workstation converts any open surface into a comfortable sit-stand workstation. At its lowest point, the desktop is comfortable for working while seated so it can stay on the desk at all times and users can transition to standing with little effort. Patented internal Constant Force™ technology allows for easy, controlled, and precise height adjustment. Simply squeeze the hand lever and guide the desktop straight up or down. Extremely stable throughout its range of motion, users can even lean on it while working. Included keyboard tray sits 4½" below work surface for comfort, and moves with the desktop. Designed for desk surfaces 24”D or larger. Adjusts up to 15” vertically. Holds up to 40 lb. 37½"L x 25”W; 56 lb. Truck delivery.