5 Best Vertical Mouse for Wrist Pain (from an Ergonomist) - Ergonomic Trends
Vertical Ergonomic Optical Left Hand Mouse, Reduce Wrist Pain, 6 Buttons 3 Adjustable DPI 1000/1600/2000 Levels, Better Performance for PC, Desktop, Laptop - Black - Newegg.ca
Find the Best-Fitting Mouse for Your Hand Size | Logitech
DELUX Rechargeable Wireless Ergonomic Mouse, 2.4G and Bluetooth Vertical Mouse, 4000DPI, 6 Buttons, Reduce Hand Strain and Wrist Pain, for Laptop PC Windows (M618DB-White) : Amazon.ca: Electronics
Why a vertical mouse can reduce wrist pain
Mouse arm and repetitive strain injuries
Vertical Ergonomic 89g Lightweight Optical Mouse, DAREU USB Wired RGB Computer Mouse Reduce Wrist/Hand Strain, 6400 DPI, 6 Buttons for Laptop, Desktop, PC : Amazon.ca: Electronics