Free up desk space with the Articulating Keyboard System. A great choice for a desk not featuring a built in keyboard tray, this is a great way to gain desk space.Enjoy having your keyboard and mouse on this amazing articulating keyboard system. The tray attaches to the underside of your desk and allows you to retract or pull out when you want. It also accommodates your mouse with the 9" diameter swivel mouse tray. This tray features a spring-assisted lift component to raise and lower the tray to your desire height. It is ideal for office desks that have limited space!