Magnet is strong. Does the job but a lil heavy. One downside is that the closure is kinda heavy for thinner chains so it drags the necklace down a little bit.

Although the clasps function as intended, the weight of the magnet and clasp itself pulls the necklaces to drape in the back. This clasp is heavy and didn't actually solve the problem of tangled chains.

These are great quality keychain lobster clasps. Can even be used on jewelry for larger necklace pieces. Small and perfect for my use of clothing closures.

The clasps are more like aluminum foil. Very flimsy and will break or dislodge. I fear if i used pliers to force them open they would crumble into nothing.

Smaller than described. The swivel ring measures 13mm from the widest part. These are tiny—they measure at most a notch past 1”.