Vertical mouse: prevents RSI
The HE Sport has a vertical grip which provides a neutral, relaxed position of the hand and wrist. You move from the forearm instead of your wrist, which prevents RSI. The mouse fits comfortably in your hand, and supports your wrist and fingers.
Product ID: RGOHEREDR
Model: R-Go HE Sport Ergonomic Mouse, Medium (Hand Size 165-185mm), Right Handed, Bluetooth, Red
Product Video: http://www.youtube.com/watch?v=Nquqq26E5ms