For now piled one upon the other, the cubes of the pyramid exceeds the size of our little girl. For the size, it will come! The tubes are very strong cardboard, so I think potentially less dangerous than wood. They are well decorated, and turning it may have a notion of what the four seasons (for children living below the Equator, single season, then we must think of another graphics!) She plays very well with the ground as it is unable to stand up. Regarding the strength, my opinion is that this same toy used to his little brother a little later (now it has only two days) So in my opinion a good fun and educational investment at a moderate price by buying it on Amazon.