SANWA Wired Ergonomic Mouse, Optical Vertical Mice for Small Hands, Reduce Wrist Strain, 1000/1600 Adjustable DPI, 6 Buttons, Compatible with MacBook, PC, Laptop, Desktop, Windows, Mac OS, Black

Customers find the ergonomic mouse comfortable and easy to use, particularly noting its perfect size for smaller hands. The mouse receives positive feedback for its quality, comfort, and value for money, with one customer mentioning it helps with tendinitis. While the mouse works well initially, some report issues with the scroll wheel stopping working consistently.