2.25 Inch White Ball Arcade Game Trackball Compatible with Jamma 60 in 1 Jamma

Works great with arcade1up jamma kit, i did install backwards first, the writing on top of unit should be upside down when you looking at it from top facing screen.

This is a easy to install, easy to use trackball, functions great and rolls smooth. I did install upside down at first and the screws were a bit of a problem. I couldn’t ask for more! Great product!!