The truly ergonomic HandShoe Mouse has been designed to stop pinching and gripping like you do with a standard computer mouse. Gripping and Pinching is a major cause for Repetitive Strain Injury (RSI) and Carpal Tunnel Syndrome. This ergonomic mouse (the HandShoe mouse) also prevents that your fingers are hovering above the mouse buttons, another cause for RSI and capral tunnel syndrome. The HandShoe mouse has been developed by a medical university and has been tested in large organizations for almost two years.