Take workstation ergonomics to new heights with the mahogany 28.4' Alcove Sit-Stand Desk Riser with Keyboard Tray from FlexiSpot. Designed for easy deployment and convenient control, this sit-to-stand desktop converter features a stabilized base measuring just 14.8' deep for easy use with work desks, cubicles, countertops, and more. A removable tray can be used to hold a keyboard or laptop. Adjust height from 4.7 to 19.7 inches with just one hand. The FlexiSpot Alcove features a desktop surface measuring 28.4 by 16.3' and a maximum load capacity of 33 pounds. The keyboard tray can hold a total of 4.4 pounds.