I just got some of these for Christmas. The first time I wore them without reading the instructions. And they kept coming undone. That's what prompted this thread. Then I read what I should've read to begin with, and discovered the safety lock needed to be released. I wore them after releasing the safety lock and they held okay. Ladyjane,
perhaps you should give them a test run before wearing anything of great value? I don't know. But some of my jewelry have such little clasps, it takes a half hour to put them on. That's why I went this route. It's quick and easy.
_________________________
https://www.amazon.com/author/bonnie.mill-lemke
https://kdp.amazon.com/en_US/bookshelf