Well I’m sitting right here waiting and hoping tor this to blow sky high, I’ve got to say this little gizmo works like a charm....I was barely able to walk or stand due to my “severe degenerative arthritis of the spine” but after using it for three days I’m pain free (no BS !). I’ve ordered 3 more one for my hip, one for my shoulder and one for my wife (she can be a pain, but I don’t expect it to get rid of her!). Thanks for turning me on to this, disco.