eazye.info: thumb roller ball mouse. Skip to main content. Ergonomic Wireless Mouse, Jelly Comb MV GHz Precision Cordless Mouse with Thumb-Operated Scrollwheel, Less Noise, Optical Mice for Laptop PC Windows Computer, White and Silver. out of 5 stars $ $
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The ball is located at the top of the mouse under the pointer and middle fingers. It is easier to manipulate the cursor in this way. This optical trackball mouse has rubber feet that along with its weight help it to be steady in eazye.info: Angela Galbraith.