Amazon.com has a Kensington Expert Optical Trackball USB Mouse for $59.99 after $20 rebate with FREE shipping.
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- Award-winning Scroll Ring around the trackball makes scrolling quick and easy. n
- A user says – One of the most eloquent designs of any input device on the market Largest ball of any of the mainstream, consumer trackballs Trackball has great momentum and virtually frictionless rotation. n
- Largest ball of any of the mainstream, consumer devices n
- Great momentum and virtually frictionless rotation n
- Detachable wrist rest cradles your hand in comfort, Windows or Mac compatible