Magic Book Pack Of 4 (Random Design Will Be Shipped) - EKT3906

The ink from the included pens automatically fades within a short time after writing, allowing the books to be reused repeatedly. 
The set typically includes books for English alphabets, numbers, mathematics, and drawing. 
They often feature a three-dimensional groove design to guide children's handwriting and help develop fine motor skills. 
This product is considered an effective and fun early education tool for children aged 3 to 7 years.