Bought these for my kids to experiment with and do crafts. These are strong little magnets that are great for crafting, but the coating peels off easily and does not protect fragile magnets. Not for applications that will subject them to wear and tear or repeated use as they break fairly easily. They will break or splinter if they come into contact with each other, so care must be taken when using more than one at a time. Of the fifty specimens that went into the box, only half survived intact, and only ten of those are more or less pristine. We've seen good use for them but wish they were more durable. We have larger magnets with much better coverage, but we haven't had any luck with the smaller ones. I will try another brand in the future.
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