The Kensington Orbit Trackball with Scroll Ring offers both a precise scrolling and perfect comfort throughout the day. The scroll ring lets you browse easily Web pages and documents. In addition, its comfort and its small footprint are outstanding.

Guarantees
· 100% money-back guarantee including shipment cost for 60 days
· Quick shipping
· 1 year manufacturer warranty
· Dioxide emissions off-setting

Advantages
· Accurate mousing. The trackball is big and comfortable for a smooth and accucate mousing. The sensor is optical for a precise tracking.
· Scroll ring. It offers a fast and easy scrolling of web pages and documents, without click.
· Small footprint. The trackball allows you to control your cursor with your fingers. Avoiding movements to move your mousing device saves desk space.
· Fingers-operated. You don't need to move your hand around in order to move your cursor. The trackball moves with your fingers, reducing the strains and pains associated with the use of traditional mice that require moving the fingers, hand and arm.
· Ambidextrous design. Left and right handed users can use the trackball. You can also switch the hand to share the fingers work during the day.
· Programmable functions. The software TrackballWorks customizes the functions of each button. Result: a more productive computing experience customized to your needs. Define your mousing functions or keyboard shortcuts for each favorite button or combination of buttons on the trackball, adjust the speed and acceleration of the pointer, and much more.