(3 pack) 3m/commercial Tape Div. Ergonomic Three-button Optical Mouse, 2.4 Ghz Frequency/30 Ft Range, Right Hand Use, Black

Six year ago I started experiencing problems with the conventional mouse. The joints in my first 2 fingers and my wrist started giving me grief . I looked around for alternatives at that time and purchased this 3M Ergonomic Mouse and have been using it every since. It took a while to get used to using it, but it's been working great for me these past 6 years. Best of all -- No more pain!! A couple weeks ago, due to a project I am on, I was working at a different computer with a conventional mouse. Because I was pain-free for so long, I had forgotten that I can't use a regular mouse for long without pain. Within a couple days, the pain in my joints returned. I now purchased a 2nd ergonomic mouse to use when I am sitting at someone else's computer.