Contour RollerMouse Pro2 RM-PRO2-BLK Black 7 Buttons USB or PS/2 Wired Optical Mouse

RollerMouse Pro2 eliminates reaching for a traditional mouse, relieving neck, shoulder and elbow pain. The RollerMouse PRO2 is controlled with the use of an unflexed hand, so there is no need to clutch or hold the device in order to navigate the cursor. Your fingertips roll a narrow bar both up and down and from side to side simultaneously to navigate the cursor over the entire screen, with very little friction or resistance.