Optical Unit (fixiing Wobbling Mouse Pointer)
The Anker Vertical Mouse is a one of the cheaper name-brand vertical mice you can buy, and comes in both a wired and wireless variant. It is only available as a right-handed mouse.
The internals of both variants are fairly similar , so repairs should work similarly on both units. Performance is fairly standard to an optical mouse, although the wireless variant has a tendency to turn itself off to preserve battery life.
Over time, the mouse can become prone to double clicking issues and general switch/part weardown. It can be disassembled using a standard screwdriver once prying off the pads covering the screws.