Evoluent VM4L VerticalMouse 4 Left-Handed Ergonomic USB Wired Mouse - Regular Size for Office, Gaming & Computer Work | Reduces Wrist Pain & Carpal Tunnel Syndrome

Avoids forearm twisting for comfort and good health. The patented shape supports your hand in an upright neutral posture that generally avoids forearm twisting. Many users, including medical doctors, ergonomists and physical therapists, said the Evoluent VerticalMouse provides superior comfort and even relieved their wrist pain.