Kensington Orbit Wired Trackball Mouse with Scroll Ring K72337EUThe Kensington Orbit Trackball Mouse works well for both right and left handed users to get the most out of their trackball. TrackballWorks software offers incredible customisation and Optical Tracking Technology provides precise cursor movement for superior accuracy. With a scroll ring and medium ball for precise tracking and control. A detachable wrist rest supports hand and wrist for ergonomic comfort. The trackball is compatible with Windows 10,