As it can be seen on imageID=224925, the box is not rectangular, there is that large thingy hanging there. If we do not count it in the dimensions, we get 8cm instead of 16 cm (3.15 inches instead of 6.3).
My copy does not have rules. The contents are written on the box (in Hungarian, Czech and Polish) and they do not mention rules either. I don't know if I should add neutral as a language instead.