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Did you know that people with shoulder pain might experience relief by switching to a trackball? Didn't know that there's a foot-operated mouse?.
standard mouse and had never used trackball mouse.. The devices used in this experiment were a trackball
Mouse (Fig 1) and a. jkOnTheRun has a great trick Amazon.com:
for cleaning the Mighty Mouse trackball: First slightly and carefully moisten the ball, I used spit on my fingertip.
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Trackball USB that my husband had bought for work. He likes trackballs better. Now he is retiring and we have an. Amazon.com: Kensington Expert Mouse Optical USB Trackball for
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Mouse is XGamings Relocation new controller, but the Amazon.com: