Ambidextrous trackball design
A trackball design with a long, broad palm area and gentle curves keeps your hand comfortable and supported all day—whether you use your right or left hand.
Convenient button controls
Buttons let you easily move forward and backward when you're surfing the Web
Marble® optical technology
Our patented technology gives you smooth tracking on almost any surface so you can be productive wherever you work.*
Stable base
Your hand stays comfortable all day long with this stay-put design. Plus, it saves you space.
Fingertip-based control
Fingertip-based control provides you with fast, accurate cursor movements.
* Does not work on clear glass or mirrors.