Stopped sucking her fingers after 2 weeks and has never gone back.
My daughter sucked her pointer and middle fingers of her left hand upside down.  She did it for a long time and I was getting worried about her soft palate and her teeth.  So at 3.5 years old, I bought this item.  I was extremely hesitant because it was so expensive.  I had tried bandaids, fingernail polish, gloves, but nothing was working!  So when I put this on her, she had no problem wearing it.  She tried sucking on it a few times but it was very awkward for her so she stopped.  Anytime she washed her hands, I cut the band off and put a new one on.  She could not get it off on her own at all and I was impressed at how unnoticeable it was to her.  People would ask me about it and sometimes it took me a minute to even figure out what they were talking about because it was so routine.  After 2 weeks of having it on her, I took it off and she never sucked her fingers again.  I know it seems like a lot of money, but in the long run I feel I prevented costly dental work.  It has been over 2 years now, by the way, and still no sucking her fingers.
Rating: 5 stars