It's a gimmick Jack.
As acehistr8 alluded to he used them and nothing happened, same thing with the magnet one's. The emphasis is based on magnets oin which they are supposed to turn the electrons in your cells around and face a different direction, thus increasing blood flow and other speculative "junk". Although it is true you can polarize (believe correct terminology here) your electrons and turn them, the magnet needs to be of a higher magnitude, and then still studies are inconclusive as to the benefit of such stimulation.
As for some people stating it does wonders, we call that a "Placebo Effect" certain people will always get some type of a response just because they are being asked questions involved in a study, whether or not they were on an actual product or not, they still perceive a benefit and some actually do get a benefit (from nothing) sometimes.
TSI
