The Kensington TurboRing 64660 USB Optical Trackball Mouse is a stylish and functional mouse designed for users who prefer a trackball for their computer navigation. With a sleek silver and black color scheme, this mouse features a scroll wheel for easy scrolling and 4 buttons for precise control. The optical tracking method ensures precise and smooth cursor movement, making it ideal for tasks that require accuracy and efficiency. The wired USB connectivity allows for easy setup and use, making this trackball mouse a practical choice for computer users.