PRODUCT DETAILS
InkThe pen with special ink will gradually fade within 30 minutes after writing, and the books are reusable.GrooveThe books are designed with special grooves which can lead your handwriting correct and beautiful!PaperThe paper are thick and durable. Children may take it with them anywhere and paint as they like.GripsThis set contains a pen and a grip with random color. It not only helps correct writing grip posture but also makes the writing more funny.