Optical Orbit Trackball Mouse, Two-Button, Black/Silver

Control your cursor with a simple touch of the finger. Uses less arm movement and desk space than a conventional mouse. Features Diamond Eye optical technology for precise tracking. Resistant to dust, reducing the need for regular trackball cleaning. Connector/Port/Interface: USB; Left/Right Hand Use: Left/Right; Mouse Technology: Optical; Trackball; Wired/Wireless: Wired.

Price: 34.68 from Zuma Office Supply US