Logitech Trackman Marble Trackball Mouse – Wired USB Ergonomic Mouse for Computers, with 4 Programmable Buttons, Dark Gray

Customers find this trackball mouse to be the best Logitech model ever made, working well with either hand and being easy to set up. They appreciate its ergonomic design, noting it's easier on hand and wrist, and helps with carpal tunnel pain. While some customers report it lasting for many years, others mention it breaking after 6 months of use. The mouse receives mixed feedback about its functionality, with several customers noting the absence of a scrolling wheel.