Picked up a Logitech Cordless Optical Trackman the other day - a fine addition! : r/Trackballs
Logitech Cordless Optical Trackman Wireless Trackball Mouse Complete for sale online | 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