Very good game, my 3 year old son loves watching the ball fall. It is a little fragile for a child of this age, the construction falls regularly and I have to put it back. I had read on the website that the recommended age was 3 years but on the box is 5 years, and this is understandable as a 3 year old can ride alone and is not yet enough difficult to avoid jostling the building. In terms of construction, I took the shot very quickly. It's pretty simple if you follow the plan and the different colors. I made one with 3 possibilities passage of balls, 2 mechanical thanks to the elevator and a manual. It allows the child to watch and / or interact Recommend rather for 5 years