The completely sealed glass ball is filled with water before it is produced, unless it is broken, otherwise you can go back and forth to the refrigerator ten thousand times to repeat freezing, whether it is drinks, juices, of course, and the family Hennessy brandy, no longer have to worry about drinking half of the water after the ice quickly melted and mixed in the delicious drink brings a bad experience. It is said that it has been sold in April this year, and I do not know if any children's shoes have seen this thing.