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Trackball Mouse for comfort and precision
Customizable 2-Button design via TrackballWorks software
Compatible with Windows (including Windows 8) and Mac OS Computers
Orbit Optical Trackball Mouse
Comfortable for left or right-handed users
Compact design, stays put and takes up less space
It's inexpensive, looks cool and performs well
Five year warranty
KMW64327 UNITED STATIONERS (OP) MOUSE,TRACKBALL,OPT,BK
Kensington Orbit Trackball Mouse (K64327F) - B000HEW0KW