This Microsoft Trackball Optical 1.0 computer mouse is a great addition to any setup. It boasts a sleek gray design and ergonomic shape that's perfect for right-handed users. The mouse features a trackball and scroll wheel that make navigation easy and precise. It also has programmable buttons that can be customized to suit your needs.

Connectivity options are USB, while the tracking method is optical. The mouse comes with five buttons and is ideal for use with computers and tablets. It's in great working condition and would make a great addition to any collection.