Humanscale Switch Mouse’s ergonomic design consists of a V-shaped base, which is easier on the wrist and forearm, and a navigation dish that allows scrolling in all directions. In addition, it features programmable buttons, size adjustability, left and right handed usage, and built-in palm support. Humanscale claims that their mouse reduces repetitive motion stress and gives users a natural 45° angle. The multi-award winning Ergo designed peripheral is now shipping for $120.00.