Vertical Grip MouseA good, ergonomic mouse is of the essence, as it is a widely used computer accessory. One of the vertical mice in our assortment is the Grip Mouse. You hold a vertical mouse in a handshake position, which has less lateral wrist bending and forearm rotation. The handshake position of vertical mice keeps the wrist from bending as much to the side while the forearm also turns inward to a lesser degree. This means that muscle activity in the forearm is