Evoluent Vertical Mouse 4

The patented shape of the Evoluent VerticalMouse supports your hand in an upright, neutral posture that generally avoids forearm twisting. By keeping the hand upright, and the forearm in a more neutral posture, the musculature of the forearm is able to remain in a more relaxed state, decreasing tension through the wrist, and lower potential for injury with prolonged mousing.