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Title: A total design failure
Review: The ergonomics of this trackball are just plain awful. The design fails to accommodate left handed users and the Kensington Orbit Trackball with Scroll Ring is far superior. A trackball is for ease of usage and should be centrally placed for a good reason, Logitech has a total dud here. I gave them feedback, but no response, of course.Buy a decent trackball rather than this joke, please, the earlier Marble Mouse from Logitech is far superior, but Kensington easily beats it.
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