Two sheets of the "A, I, U, E, O" characters only, excluding the voiced-sound marks and clock. These sheets are unused. ———- This is a color-changing bath sheet that changes color depending on temperature. You can attach the sheet to the bathroom wall with water, or float it in the bathtub, and have fun learning with the Sumikko Gurashi characters in the bath. When you pour hot water on the black parts, the correct answer appears. When you pour cold water, it returns to its original state, so you can play repeatedly. Target age: 2, 3, 4, 5 years old