Expert Mouse Trackball USB 2.0 Left/Right Hand Use Black/Silver

The best trackball ever made has just gotten better. The new Expert Mouse employs Kensingtons Diamond Eye optical technology for smooth precise cursor movement. You get all of these great new features along with the same large ball exceptional control and ease-of-use that has set the industry standard for more than 15 years. An attached 6-foot cord provides plenty of slack for comfortable positioning within your workspace.