It is colorfull with different size that you can nest them and stack them together and can also be use later for other differentiation games. Though at the moments at ten months she either watch me nest and stack them up and she will play her parts in destroying the towers and messing up!!
Present them to her in orderly manner and observe what she does with them.
Build a tower, now she's coming to detroy them. Oh by the way we can bring this to play with the sand too, or we can play these with our DIY snow sand.