Description: Instantly transforms your desk into an ergonomic work space, allowing you to sit or stand as you work. Sitting for six to eight hours a day is not ideal, and standing all day can be hard on you as well. By changing your position to fit your comfort level, youll enjoy higher productivity, better posture, fewer energy dips, and a variety of other benefits. Easily attaches to your existing desk to give you 18" of instant height adjustability, retractable keyboard/mouse tray, and VESA compliant monitor mounts. Ideal for use with either a laptop or a desktop computer and provides extra work surface (19 3/4"W x 12"D) for a tablet or other work materials. Provides 60" of cable management.