4 In 1 Large Magic Practice Copybook Set: If you want your children to learn calligraphy, Writing, painting, mathematics, English. A reusable magic copybook set is a must-have. This series of workbooks contains a wealth of exercises to help children develop the eye-hand coordination skills necessary for learning to write clearly. Magical Reusable Workbook Set: The magic practice copybook will automatically fade and can be reused. The handwriting disappears automatically after drying, making the copybook set suitable for repeated practice. we offer a set of pencil jackets for you. It's convenient for children to reuse this copybook because the handwriting will disappear within 15 minutes of writing. It's includes1 pen holder and 5 refills, children can practice for a long time. High-Quality: Practice copybook 7.5×5.2 inch, it has a three-dimensional groove design, high-quality paper, strong and durable. The cute soft pen holder allows you to hold the pen for a long time, always comfortable.The paper is thick, not easy to smudge and not easy to stain. The pen holder is made of silicone, which is 100% safe for children. Build Writing Muscles & Handwriting Skills: During these activities, kids will use their pen to follow paths and draw different shapes, so they build their fine motor skills.That will engage their minds and boost their reading and writing comprehension skills.Build essential skills help your little one learn their letters, numbers and pictures on every page. It is a good tool for developing fine motor skills and eye-hand coordination skills. Fun Yet Practical: featuring with three-dimensional groove design, these handwriting copybook tracing books can standardize the standard writing format, fun yet practical for kids to use in daily life Increase the interest: these magic calligraphy books are with fun graphic combination, vivid colors and cute shapes, which can enhance kid's memory and interest, bringing them much fun, kids can learn a lot from it.