My 8 year old daughter loves the Puzzleball calendar. Unfortunately, not even a puzzle ball (part) is behind all door. Instead comes behind some large doors unfortunately only a small piece of paper with facts out, which unfortunately causes some disappointment. This situation is not apparent from the product description. Only if you have the Advent and on the back the content recalculates exactly is seen that probably behind 7 doors, only one such list is. Given the price, I find it a pity and that will also cause that we would buy next year another advent calendar.