Have it on hand if need arises.
I was having a problem that included simultaneous discomfort in my right side arch / ankle, knee and hip.  Tried to treat all three to see which was the root problem and which were linked to being out of alignment and 'favoring' the other two joints.  Use of this band did give relief, but the root problem was the foot, which I resolved with a special 'sock.'
Rating: 5 stars