Designed for 4-8 Years Old - Magic groove writing practice books are perfect for preschoolers to practice writing, helping children build a solid writing foundation. Includes 6 Magic Groove Writing Practice Copybooks (Numbers, Addition/Subtraction, Letters, Phrases, and Drawing*2), 2 Pen Holding Aids, 1 Pen, and 5 Refills - everything your child needs to start learning3D Groove Design & Premium Quality - The groove handwriting practice for kids adopts 3D groove design, which is convenient for children to follow and trace, and is durable, thick and not easy to get dirty. The silicone pen holder is 100% safe for children and comfortable to hold. The clear, high-quality printing makes it a perfect choice for long-term handwriting practiceDisappearing Ink for Repeated Practice - The reusable grooved handwriting workbook comes with a replacement core that uses magic ink that will automatically fade and disappear within 30 minutes after writing, allowing children to practice again and again without the hassle of buying a bunch of workbooksEssential for Early Learning The grooved witing books for Kids 3-5 helps kids master letters, numbers, and basic maththe foundation of preschool education. Includes drawing exercises to keep children engaged and stimulate their creativity while practicing handwriting. A must-have for early childhood developmentThe Perfect Gift for Kids Magic grooved writing practice set is an ideal gift for children aged 4-8. It not only improves handwriting skills but also teaches the correct pencil grip. Great for Christmas, New Year, birthdays, or back-to-school gifts.