I purchased 3 two-packs of these clasps and went right back for the bulk pack. I don't have to hesitate to use them on a bracelet because they can't be just pulled apart (bye-bye bracelet!) but the bracelets are still easier to put on than they are with spring-rings or lobster clasps. The magnets are not super-strong, but they don't need to be because of the little teeth that fit together between top and bottom of the clasp. They're pretty, too, and go with just about any style. I only wish they were available in antique gold-plate too!