The evoluent vertical mouse designed to keep the forearm in a neutral posture, and has been found to reduce forearm discomfort and pain e.g. tendonitis, as well RSI and WRULDS

A patented new shape that supports your hand in a relaxed handshake position. It has five programmable buttons and a fast 1000dpi optical sensor that reduces the hand movements needed to move the pointer. Special features include vertical scroll, auto click and click lock.