Photo 1 of Kensington Orbit Trackball Mouse with Scroll Ring (K72337US), 4 1/2X5 1/2X2"

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Photo 1 of Kensington Orbit Trackball Mouse with Scroll Ring (K72337US), 4 1/2X5 1/2X2"Photo 2 of Kensington Orbit Trackball Mouse with Scroll Ring (K72337US), 4 1/2X5 1/2X2"Photo 3 of Kensington Orbit Trackball Mouse with Scroll Ring (K72337US), 4 1/2X5 1/2X2"