![vintage marble mouse the two button type. How do you scroll? I read press both buttons together but... : r/Trackballs vintage marble mouse the two button type. How do you scroll? I read press both buttons together but... : r/Trackballs](https://preview.redd.it/iy8mhqfgshh81.jpg?width=665&format=pjpg&auto=webp&s=3576b9e10368d7105f88e1abcae047a26179ce34)
vintage marble mouse the two button type. How do you scroll? I read press both buttons together but... : r/Trackballs
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Logitech TrackMan Marble, Wired Trackball Mouse, 300 DPI Marble Optical Tracking, Ambidextrous, USB, PC / Mac / Laptop : Amazon.co.uk: Computers & Accessories
![Logitech TrackMan Marble, Wired Trackball Mouse, 300 DPI Marble Optical Tracking, Ambidextrous, USB, PC / Mac / Laptop : Amazon.co.uk: Computers & Accessories Logitech TrackMan Marble, Wired Trackball Mouse, 300 DPI Marble Optical Tracking, Ambidextrous, USB, PC / Mac / Laptop : Amazon.co.uk: Computers & Accessories](https://m.media-amazon.com/images/S/aplus-media-library-service-media/9a9312ad-00b3-466b-8047-3352cbe4a8d2.__CR0,0,800,600_PT0_SX800_V1___.jpg)
Logitech TrackMan Marble, Wired Trackball Mouse, 300 DPI Marble Optical Tracking, Ambidextrous, USB, PC / Mac / Laptop : Amazon.co.uk: Computers & Accessories
![Logitech TrackMan Marble, Wired Trackball Mouse, 300 DPI Marble Optical Tracking, Ambidextrous, USB, PC / Mac / Laptop : Amazon.co.uk: Computers & Accessories Logitech TrackMan Marble, Wired Trackball Mouse, 300 DPI Marble Optical Tracking, Ambidextrous, USB, PC / Mac / Laptop : Amazon.co.uk: Computers & Accessories](https://m.media-amazon.com/images/I/71Gm-oOnmaL._AC_UF1000,1000_QL80_.jpg)