These magnetic clasp’s are very sturdy and strong, and an excellent value for the money. Sturdy enough for natural stone necklaces. The magnets are not quite as strong as i'd like, but overall they are fairly secure.
It’s an easy open clasp and the rings were sturdy to. They meet the measurement represented, and they are all well working. If you need to make bulk keychains for whatever reason, mine being mardi gras trinkets i 3d printed.
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Mostly unreliable reviews. Do more research before proceeding