Kensington Pro Fit Ergo Vertical Wireless Mouse – BlackDesigned to promote healthier and more comfortable computing, the Kensington Pro Fit Ergo Vertical Wireless Mouse places your hand in a natural handshake position to help reduce wrist strain and muscle fatigue. Its ergonomic vertical design features a 46. 7 degree angle that supports neutral wrist alignment, making it ideal for extended work sessions. With smooth wireless performance, adjustable DPI settings, and a practical six button layout, this