Descripción del producto

We have a new pencil also can used as ball pen and water pen,it can prevent myopia ,suitable for primary school students,you can refer to the picture.
 when the eyes are too short from the paper when writing ,the pen head will be back to,or the wrong posture of holding pencil.the key effect is to prevent myopia and keep the right posture in case of hunching,it is also for healthy.