The Contour Perfit Mouse Optical enables the hand to remain open with fingers extended in ready position for easy clicking. The elevation and shape reduce excessive load on the fingertips.
The thumb support allows movement of mouse with reduced pinch force. The elevated design helps maintain a neutral, tilted wrist posture.
To determine size, measure from tip of middle finger to first crease of wrist.
* 5-3/4" - 6-3/4" Small
* 6-3/4" - 7-1/2" Medium
* 7-1/2" - 8-1/4" Large
* 8-1/4" and above: X-Large
Measurement between two sizes? For thin hand (thickness from palm to the top of hand), select the larger size. For thick palm, generally the smaller size fits.