Evoluent Vertical Mouse 3

Evoluent LLC is the inventor of the handshake grip. The Evoluent
Vertical Mouse 3 is the advanced third generation of the revolutionary
mouse that amazingly relieved wrist and arm pain (according to many user
reports). The shape has been further refined in subtle details based on the
ergonomic lessons learned from the previous two generations.

Eliminates arm twisting

The patented shape supports your hand in a fully upright handshake position that eliminates forearm twisting. Many users said earlier models relieved their hand, wrist, or arm pain. See these actual user comments.

An ordinary horizontal mouse requires your forearm to twist away from its natural position.

Familiar grip The grip is the same as an ordinary mouse, just turned sideways. Many users said they got used to it very quickly.

The VerticalMouse does not move sideways when clicking with normal force because the thumb naturally opposes the fingers. Pointer control is as accurate as any other good mouse when the pointer speed settings are properly adjusted.

Easy to use buttons All 5 buttons are easily operable without contorting your fingers. The button force is light for easy clicking, but still firm enough to avoid accidental actuation.