Contour Design Balance KeyboardDesigned to fit the RollerMouse Red, Red plus, Free2, and Free3, the Contour Design Balance Keyboard puts your hands and wrists in the optimal typing position. Designed specifically for use with the RollerMouse series, you'll be in an improved, stress free position while getting the most out of your keyboard and mouse. Your hands stay closer to the action and within reach of both the rollerbar and keyboard keys. The Balance Keyboard's adjustable legs