![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
![LOGITECH TRACKMAN MARBLE (USB) | Compact | 2.4 GHz Wireless | Long Batery Life | Programmable buttons | Compatible with Windows® XP, Windows Vista®, Windows 7, Windows 8, Windows 10, Mac OS® X 10.5 or later | 3 years warranty | Lazada Singapore LOGITECH TRACKMAN MARBLE (USB) | Compact | 2.4 GHz Wireless | Long Batery Life | Programmable buttons | Compatible with Windows® XP, Windows Vista®, Windows 7, Windows 8, Windows 10, Mac OS® X 10.5 or later | 3 years warranty | Lazada Singapore](https://lzd-img-global.slatic.net/g/p/57367c3dc61930cf55b3279743b61e77.png_720x720q80.png)
LOGITECH TRACKMAN MARBLE (USB) | Compact | 2.4 GHz Wireless | Long Batery Life | Programmable buttons | Compatible with Windows® XP, Windows Vista®, Windows 7, Windows 8, Windows 10, Mac OS® X 10.5 or later | 3 years warranty | Lazada Singapore
Logitech Trackman Marble Trackball Mouse – Wired USB Ergonomic Mouse for Computers, with 4 Programmable Buttons, Dark Gray, Computers & Tech, Parts & Accessories, Computer Keyboard on Carousell
![Amazon.com: Logitech Trackman Marble Trackball – Wired USB Ergonomic Mouse for Computers, with 4 Programmable Buttons, Dark Gray Amazon.com: Logitech Trackman Marble Trackball – Wired USB Ergonomic Mouse for Computers, with 4 Programmable Buttons, Dark Gray](https://m.media-amazon.com/images/I/81vTff6EagL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Logitech Trackman Marble Trackball – Wired USB Ergonomic Mouse for Computers, with 4 Programmable Buttons, Dark Gray
![Amazon.com: Logitech Trackman Marble Trackball – Wired USB Ergonomic Mouse for Computers, with 4 Programmable Buttons, Dark Gray Amazon.com: Logitech Trackman Marble Trackball – Wired USB Ergonomic Mouse for Computers, with 4 Programmable Buttons, Dark Gray](https://m.media-amazon.com/images/S/aplus-media/vc/42dabacf-fc0c-4e6a-96cc-e6415d7dd313._CR0,0,800,600_PT0_SX600__.jpg)