I've used these clasps for over a year and not had one complaint so far. They look great and work well.
NICE LOOKING ANTIQUE GOLD CLASP
This clasp is very pretty and I have used it many times. I do agree that sometimes it opens up. However, you can remedy this by bending the open clasp a little tighter so it's more secure and doesn't open so easily. Problem solved.!
These are the cutest clasps, but they are totally ineffective. They come apart and your necklace falls to the floor. This happened to me several times, and customers complain about them even before they purchase the necklace. Do not recommend these at all.