I don’t know, it just didn’t work for me.
I’m at this for my nickel when I severely sprained it and needed support, compression and hopefully pain relief .  To be honest I couldn’t quite figure this thing out. No matter what I tried it didn’t seem like I had assembled it together the right way.  Finally I gave up and used a Sleeve Stars.  I don’t know, it just didn’t work for me.
Rating: 3 stars