Germs cannot exist when connected to copper
I have no idea if this is effective for that which  for which it was bought.  I bought it to use as a preventive for the coronavirus.  Germs cannot exist with copper. I use one end in my nostrils and the other on my tongue.  So far I haven’t caught this virus, but don’t know if this is the reason...just another tool for support.  I use it when I’ve had to go out.
Rating: 4 stars