We had some ideas for fun and healthy exercise - we put them in a box. Now you can take them out every time your child is bored (because you have to stay at home and don't know what to play).
Creative - that's what it is first and foremost. Minimalistic and simple, it opens up every now and then new worlds as a child - he can stir up, enjoys, and helps in learning to write. Such miracles! :)
A small thing, and the joy is huge.