RollerMouse Pro 2
RollerMouse Pro2 is an ergonomic mouse alternative designed for you, not your computer. It sits below your keyboard, eliminating the need to reach for the mouse, which can stress your neck, shoulders, elbows, and wrist. RollerMouse Pro2 allows you to work safer, faster, and more comfortably.
More information: http://ergo.contourdesign.com/US/product/rollermouse-pro2/