A size comparison between the Logitech Cordless Trackman Optical, the Microsoft Trackball Optical, and the Elecom Huge, for if anyone is curious. : r/Trackballs
Amazon.com: XHSESA Trackball Mouse Replacement for Logitech Cordless Optical Trackman T-RB22 Mouse Repair Part : Electronics
Logitech Cordless Optical Trackman T-RB22 + Receiver Black on Black CLEAN TESTED | eBay
Logitech Cordless Optical Trackman T-RB22 w/ Receiver and Original Box | eBay
Gave an old friend a fresh coat of paint today. Logitech Cordless Optical TrackMan. One of, if not THE, best trackball mouse of all time. : r/MouseReview