Keyovation Goldtouch Ergonomic Wireless Medium Vertical Mouse Right Handed w/Dongle - Wireless - Radio Frequency - Black - USB - 1600 dpi - Computer - Scroll Wheel - Right-handed Only KOV-GSV-RMW

The Goldtouch Semi-Vertical Mouse was created with an optimal slope of 66 degrees for the user who wants a mouse that is midway between a traditional ergonomic mouse and vertical mouse. Unlike vertical mice, you''ll have the power of gravity on your side when it comes to clicking, so you won''t have to use as much movement between the thumb and fingers (which in turn can require more pinching of your muscles and nerves). Sizing: Users with hands up to 7.5" can comfortably use this mouse. If the attachment flange accessory is added, users with hands up to 8" can comfortably use this mouse.