RollerMouse Pro2 - USB
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. The elimination of flexing your fingers avoids activity through the carpal tunnel. Overuse of a traditional mouse can aggravate the carpal tunnel and lead to numbness, tingling and pain.