Material: paper Color: color Size: 13x19cm Specifications: addition and subtraction + drawing + letters + numbers 11. 4-in-1 Copybook Set: If you want your children to learn calligraphy, writing, painting, math, and English. A reusable collection of copybooks is a must. This is a good gift for children. (4 * books 1 * pen sleeve 1 * pen 8 * refillsOur copybook is different from other Chinese versions on the market, we are all in English.) 2. Reusable function: The practice tracing book will automatically disappear and can be reused. After drying, the handwriting disappears automatically, which is very suitable for repeated practice. The copybook is suitable for writing beautiful English of all ages. 3. Get beautiful handwriting: In these activities, children will use pens to move along the pathway and draw different shapes, thereby improving their fine motor skills, which will attract their minds and improve their reading and writing comprehension. Copybooks can help children or adults practice different handwriting fonts and establish their own style. 4. Comfortable writing design: Writing paste adopts three-dimensional groove design, standard writing format, high-quality paper, durable and comfortable. The cute soft pen holder allows you to hold the pen for a long time and always maintain a comfortable feeling. Addition and subtraction copybook: Addition and subtraction from 1 to 20 to help children learn how to calculate. Picture copybook: various graphic pictures and text descriptions enable children to recognize various objects while playing. English copybook: 26 kinds of English letters and English words used daily, proficient in English words and get beautiful handwriting. Digital copybook: a variety of interesting number practice modes, which can help children recognize 101 numbers faster.