Roller Mouse Pro3 from Contour Design even better control and increased level of comfort With the Roller mouse Pro3 you will not feel unnecessary tension in the hand and shoulders to work in exactly the same way as a standard mouse As the Roller Mouse is placed before the keyboard it creates a inline-workstation and reduces the sensation of tension in your fingers due to the unique rolling bar The Roller Mouse is easy to use with both hands Physiotherapists and Ergon omen have proven that such computer work reduce the risk of carpal tunnel syndrome tennis elbow and can relieve RSI-Syndrome symptoms The Roller Mouse Pro3combines all the best features of the Pro2with an improved design and better functionality The new model is slightly thicker and fully height adjustable This ensures comfortable arm position when using a high positioned keyboard For added ergonomics in the workplace the rolling bar is a smooth easy to move and the click pressure can be adjusted individually The faux leather wrist support provides a more comfortable arm position In addition the Mac compatibility is improved and the edges recognition enhanced Details 29mm Height 17cm long rolling bar stimulates usage of both hands at the same time Adjustable mouse speed options from 200to 2600dpi 8button function 5buttons are programmable Comfortable Faux Leather wrist support which can be removed Aluminium base offers enhanced durability and stability Plug-and-play USB connection as Operating Systems PC Mac and HID (Linux) Dimensions (H/L/D) 2 9x 48 8x 9 9cm.