The Switch Mouse is the revolutionary mousing solution that brings unprecedented ergonomics to computer users. This groundbreaking peripheral device boosts comfort and reduces injury risks through a number of new innovations. Its V-shaped base and four-way scrolling dish complement a built-in palm support for exceptional user comfort. The Palm support can extend and retract to best fit your hand. Not only that, but the Switch Mouse also features ambidexturous support, allowing it to work for both right handed and left handed users.