The Ploopy Classic 2 is available as a fully assembled trackball or a cheaper DIY kit.

Ploopy has made a name for itself over the past few years by offering a line of customizable trackball mice with open source ...

Kensington’s design shows a wireless trackball mouse with a large ball in the center that you can move to manipulate an on-screen cursor, a rotating ring surrounding the ball that functions as a ...

Thumb-operated trackballs are easier to get used to if you’re making the switch from a regular mouse, and slanted models—such as the Nulea M501 Wireless Trackball Mouse—can reduce pain or ...