Irvingwad Vertical Ergonomic and Comfortable Wireless MouseGLIDE WITH ZERO GRAVITY ON YOUR WRIST, ELBOW AND SHOULDER. Ordinary mice force your arm into an unnatural, twisted position for hours on end. This wreaks havoc on the muscles in your arm and leads to carpal tunnel, arthritis, tendonitis and ouch pain! That is why we created the Moon Mouse. It's scientifically designed by orthopedic experts to rest your wrist in a relaxed handshake grip. It helps you work and game, without any strain and pain. Take the