It is important to use a good ergonomic mouse during our daily computer activities. One option is the Evoluent C, a vertical mouse. A vertical mouse is held in a handshake position, which results in less lateral wrist-bending and forearm rotation. Using a non-ergonomic mouse can lead to pain and discomfort in the shoulders, forearms and hands. A... vertical mouse largely prevents these problems. Thanks to the streamlined shape of the Evoluent C and the handshake posture of the wrist, you can work in a relaxed and comfortable position. Evoluent has many years of experience developing vertical mice and knows what makes a mouse ergonomic.