How cool is that? That is so cool, it makes me want to buy some just to wear. I won't though, because it seems disrespectful to people with chronic illness.
Anyway, you can learn more at SilverRingSplint.com.
Always remember that there are many people out there with chronic illness. Be considerate to random people out in public, because many of these illnesses are "invisible." You never know. Be cool.