A pen like this is equivalent to more than 100 wooden pencils and can't be used for writing at all. No ink, no core, clean and neat. In the past, children used to sharpen pens with a pencil sharpener, and the sawdust inside was always everywhere, with dirty hands, books and even the floor.

That positive way of holding the pen can correct the child's lying posture and establish good writing habits. You can write and draw, which is more convenient to carry around. It is really a small black technology product.