Material: cardboard material
Size: 5.1 * 7.5 inches/13 * 19cm
Color: White, light gray, dark gray, black
Square and three-dimensional slot design, track the writing of these books.
Copybooks can be written in a standardized format, and use interesting and practical children in daily life to increase their interest in magic calligraphy: these books are interesting graphic combinations, with lovely colors and shapes, which can improve memory and care for children, making them very interesting, and children can learn a lot