Ergonomic Mouse - ITAC Evolution Trackball for USB

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The ITAC Evolution Trackball helps reduce the amount of strain to your hand, wrist, arm, neck and shoulder with it's design. It's elevated hand support provides a safe place to rest your palm, not your wrist, preventing unneccessary pressure to the carpal tunnel. This safe support reduces the strain on the arm, neck and shoulder. The Evolution's six buttons bring some of the most often used actions to your fingertips as one touch commands. These are the default commands.(Starting from the bottom left)