Product Name: CRACKER Magic Practice Copybook, (4 BOOK + 10 REFILL+ 1 pen + 1 grip) Number Tracing Book for Preschoolers with Pen, Magic Calligraphy Copybook Set Practical Reusable Writing Tool Simple Hand Lettering Board book
The pen with special ink will gradually fade within 30 minutes after writing, and the books are reusable.
The books are designed with special grooves which can lead your handwriting correct and beautiful !
The paper are thick and durable. Children may take it with them anywhere and paint as they like.
This 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.