You can put water in it and play with the doll floating on the float. Also, the color of the float changes when you put in hot water. It's very compact, so it's easy to carry around, and my child was able to play with it with great focus. Currently, it's being sold on Amazon for 6,780 yen. *Please purchase if you understand that this is a used item. *The items for sale are all the items shown in the pictures.