Quill AirO2Bic Right Hand Vertical Mouse, Black

The Quill ergonomic vertical mouse is very comfortable to use. It feels natural in your hand. A lot of research went into this ergonomic mouse and it has paid off. This is a wonderful ergonomic mouse. The Quill patented Grip-Less computer mouse has an integrated Wrist Guide that maintains the hand, wrist and arm in the most optimal position providing for lowest physical (biomechanical) load.USB is the recommended method of connection as it is 'Plug n Play'Does not require a driver or software