Heavy Duty Computer Riser. Save your back and your knees! Spring loaded to make adjusting to various heights easy. The monitor stand stays 3.5 inches higher even while raising or lowering and has plenty of space for the keyboard and mouse. 36 inches wide, 30 inches deep. Raises to a maximum of 18 inches from the top of the desk. Effortlessly turn your desk into a sit to stand desk. Perfect for when you need to stretch while still working. I bought a new desk that has the riser built-in, so I don't need this one anymore. Fully functional and ready to go! Cash sale only.