Bad: The magnets are just as big as small button cells and because they are so strong, rather impractical for small children - for young children because of the of swallowing even completely unsuited. You bales very quickly to heap together and fly - in rejection - sometimes through the area. They break down pretty quickly. 3 or 4 magnets are my already shattered by this effect.
So Many magnets for little money, but probably not for everyone.
