Well the sun ancon is the only one with the figure 8 configuration of the fish and is patented...all other name brands just go back and forth, and as I understand it is the specific figure 8, like a fish, lol, that benefits.

I don't sell them or anything. Actually it was given to me by my mother in law years ago and has sat mostly unused until this neuropothy. She gave it to me cuz it claims to help lose weight, but ya, whatever, lol.

But I do believe it helps me, especially with the burning. Last night my toes were on FIRE and I used it and and hour later burning gone. Was it the chi? I believe so but its all a crap shoot, lol. But usually burning that bad lasts all night.