I have bought these cubes to my baby 9 months hoping to channel his attention he pays a little too on the phone and to our computers ... the good that occupies a moment, but it s tired too quickly . Certainly, he likes tapper on everything that falls into his hands, so he quickly understood the push button mechanism that activates the wheels, but it still seems to prefer today (10 months) rotate by hand. the shutters do not seem to raise the passion so far, it can be is a little small. purchase cool then, but if I had to make a n this would not this one.