Mechanical wooden box with 3 puzzles to be solved; Solution time: 10-15 min, customizable to any age. The Birthday Cake is a charming wooden gift box with a secret vault inside and it is also a mechanical puzzle box to solve. You can put a small present inside, such as jewelry, money or even a key for the new car! To open the box, it is necessary to solve 3 riddles. The cake is personalized so that you can set the age of the gift recipient