【Invisible Ink Pen Set】Includes 2 magic copybook pens, 20 disappearing refills, and 2 soft pencil grips. Designed specifically for children aged 3-5, this set is ideal for practicing writing on children's grooved writing books. ·【Pencil Grips for kids Handwriting】The soft pen grip helps children maintain proper finger posture while writing. It reduces finger fatigue, is designed for small hands, provides a comfortable writing experience, and helps children develop good writing habits from the start. 【Fun-Filled】An invisible ink pen specifically designed for children aged 3-5. The magic ink pen makes writing practice both simple and fun! The ink gradually disappears after 10 minutes, allowing children to write freely. Suitable for children aged 3-12 to develop pen grip control, hand-eye coordination, and early writing skills. Reusable, eco-friendly, and cost-effective. 【Good for Sharing】A writing practice tool designed specifically for children aged 3-5, complete with ample replacement magic disappearing pens, allowing children to write freely. Children can repeatedly use the invisible ink pen for practice without worrying about mistakes and can share it with friends. If you are a teacher or parent, you can also use it as a special gift for Children's Day, Christmas, or other holidays. Whether your child is learning with a magic writing book for kids,large magic grooved practice copybook，this magic groove pen set is the perfect match. 【Disappearing Ink Writing Practice】Please note that these grooves writing practice magic pens do not include any grooved handwriting practice for kids (and these would need to be purchased separately). If you have any problems, please contact us at any time, we will reply within 24 hours. The Disappearing Ink Pen Set is an innovative educational tool designed to enhance the learning experience for both children and educators. This set embodies the perfect blend of functionality and creativity, making it an essential addition to any educational environment. The core of this set lies in its disappearing ink technology, which allows users to write temporarily and erase effortlessly. Each pen core is crafted to ensure consistent performance, providing a smooth writing experience that encourages practice without the fear of permanent mistakes. The set includes 20 replaceable disappearing ink pen cores, two durable pen shells, and two ergonomic grip aids, ensuring comfort during extended use. This product is specifically designed to complement the Magic Grooved Writing Practice system, offering a seamless integration that supports structured learning. The pen cores are engineered to last through numerous uses, while the reusable pen refills contribute to a sustainable and cost-effective solution for educational needs. For educators, this set offers a practical way to guide students through the learning process. The temporary ink feature allows for repeated practice, fostering confidence and skill development without the pressure of permanence. Additionally, the ergonomic grips are thoughtfully designed to support proper hand positioning, promoting healthy writing habits from an early age. The Disappearing Ink Pen Set is more than just a writing instrument; it represents a commitment to innovation in education. By eliminating the stress associated with permanent mistakes, this set empowers learners to explore their creativity and refine their skills in a supportive environment. Whether used in classrooms or at home, this set serves as a bridge between traditional teaching methods and modern educational tools. The product's versatility makes it suitable for a wide range of applications, from handwriting practice to art projects. Its compatibility with the Magic Grooved Writing Practice system ensures that it aligns with structured learning objectives, while its ease of use appeals to both beginners and advanced learners alike. In conclusion, the Disappearing Ink Pen Set is a testament to the power of thoughtful design in education. It combines practicality, sustainability, and innovation to create a product that not only meets but exceeds expectations. By choosing this set, educators and parents alike can provide their students with a tool that inspires confidence and fosters a love for learning.