I received 3 packs and while the idea is great, the magnets aren't strong enough or fall out of the case. 1 set I gave to my girlfriend broke and the magnet fell out. Replaced it with another set and the same thing should have happened because those keys were gone. On my set, the third and last set, I often found myself almost losing it. I did show some indulgence, however, as they were attached to my carabiner, which I attached to a belt loop. In the end I decided not to use them at all because I really don't want to risk my keys anymore.