Used Kensington Premium Articulating Arm and Platform 34811

With this arm from, you can adjust the position of you keyboard/mouse. This is perfect for desks where you have run out of room on the surface or the desk is too high for your comfort.  

• Heavy-duty steel platform combines wrist support, keyboard, and mouse onto one level.
• Pulls out 12, adjusts 6 in height, +/- 15 degrees in tilt and rotates 360 degrees
• Includes detachable gel wrist rest.
• Model Number: 34811