The Evoluent VerticalMouse 4 Small is for hands less than about 7 inches or 178 mm long from the tip of the middle finger to the wrist crease. To see if VM4S fits you, download a full-size pdf of this drawing, print it and put your hand on it. If your hand is the same size or smaller than the drawing, VM4S may fit you better than the regular VM4R.

If you are unsure which size of Evoluent VerticalMouse to get, these general guidelines should be useful: Users over five feet and seven inches in height
(> 5’7” [170 cm]) should order the regular-sized mouse (VM4R). Users under
five feet and four inches in height (> 5’4” [162 cm]) should order the small-sized mouse (VM4S).
For users between these two heights, either size of mouse may be suitable depending on other physical attributes.

* Currently the Left hand VerticalMouse4 and VerticalMouse3 Wireless (right handed) models are available only in the Regular size.

For personal assistance in choosing the size of Evoluent VerticalMouse 4 which would best fit please call our toll-free number at 1 (866) 335-3746.
A Customer Service Specialist will be happy to answer this or any other questions regarding this mouse.