Eco Magnets? Do they help?

Ok, I may be clutching at straws, but am thinking of buying a BioFlow Eco Magnet http://www.ecomagnets.com/bioflow-bracelets.htm

They are supposed to help ease joint pains....

Has anyone tried anything like this?

If i go ahead and get one will keep you all posted if it helps at all. I guess worth a try...