RollerMouse Pro3 is an update to the original ergonomic mouse alternative designed for you, not your computer. Sitting below your keyboard eliminates the need to reach for the mouse, lessening stress from your neck to your fingers. RollerMouse Pro3 allows you to work safer, faster, and more comfortably. We strive to make our products best fit our customer’s needs, and after taking feedback we feel we have achieved that with RollerMouse Pro3.