First as something negative (if one may call it that). Since my foster son, the darts, flying in the apartment (5 Zi) around that does not suit me 'still the fun factor is very high, the darts fly fast Lund far, make a whistling sound like a howler air New Year's Eve. The boys have even formed teams and went out into the open so that they are :-) fail and of course dangerous in few meters away, but that you have to test out well. I myself have already made 2 meters get directly to the forehead and noticed nothing. As I said, high fun factor, unfortunately, this phase will pass. But a year before making the boy darts fun.