I loved this locket until it popped open unexpectedly. I lost some of my charms because of this. Then, because it screws shut/open, I would always check to make sure it was secure.
Next issue is that I tried to open it to add some more charms and then it would not un-screw. While I was trying to open it, the glass cracked and it is ruined! It is now too late to return and I only had it for 1 1/2 months! If you buy one of these make sure it has a magnetic closure! Screw type stinks!