I've been looking for my 11 months old son a puzzle in which the buttons are so great that he can handle well. In addition, the pieces should represent simple objects in an attractive color design. It should not be too detailed and too colorful. This puzzle fulfills these requirements very well, since it represents household, ball, car, tree with the first objects whose name small child learns first. The forms and restrictions are designed to clear red, yellow, green, blue. I also think it's nice that the slot in the same main color as the subject matter, which facilitates the assignment bit. The pieces have a reasonable size and the limit of 4 elements is the right place to start. The price-performance ratio is very good.