Compared with traditional pens and pencils, the everlasting pencil does not require ink or sharpening, which can prevent students from being scratched by a pencil sharpener and prevent clothes from being stained by ink. In addition, lighter pen water can make handwriting easier to erase. The everlasting reusable unlimited writing pencil is made of newly upgraded technology: through the friction and oxidation of the metal pen tip molecules with the paper, the decomposed alloy metal molecules remain on the paper, thus forming handwriting similar to the HB pencil, and the handwriting can be erased. The portable everlasting pencil reusable erasable is suitable for children's drawing, homework, diary writing, and can also be used as a marking pen. It is the first choice stationery for students and teachers. In addition, the eternal pencil can also be used as a practical gift for important holidays such as Christmas, birthdays, and school opening ceremonies.