This Review Title is Eh and the content is: The idea was cool, I wanted to see if they'd really glow blue. They are more of a light purple, but I enjoy the benefits so far. Nothing crazy, but nice to have for preventative maintenance. Sometimes they get rid of bumps coming to the surface, other times the bumps make they're way up. I would go with something higher in strength..There are other information for this review, one is This reviewer did purchase it and the other is 11 people think this review is helpful.