This Logitech T-BC21 Trackball Mouse is perfect for anyone in need of a reliable and efficient pointing device. It has an ergonomic design and a thumb button for easy navigation. The mouse is silver in color and has an optical tracking method for precise movement.

The Logitech T-BC21 Trackball Mouse is compatible with USB connectivity and has four buttons for smooth operation. It is a great addition to any computer setup and is perfect for those who want a comfortable and easy-to-use pointing device.