The Cranium Super Fort is a snap together building system that lets kids build their own structures. They can build anything from forts and clubhouses, to space ships and princess castles – or they can ‘just build’ and see where it takes them. The Cranium Super Fort uses simple (and safe) magnetic Magnaball connectors and foam tubes to make construction safe and fun. It’s great to see the satisfaction that the kids get from building their own structures, and then deciding that they’ve got a better idea, pulling it all down and starting on something new. The Cranium Super Fort is ideal for boys and girls, from ages 4 up. I wish they had toys like this when I was a kid!