Rub Heating Pen / Heating pen

Compared with urban children,children living in the mountains are lack of heating facilities in winter,often feeling too cold to grasp pen stably. Based on this,we designed this Rub heating pen.This pen does not need power,and can generate heat only by rubbing the pen body. It can be recycled to use,which is more secure compared to the traditional electronic hot pen.At the same time,the pen appearance is more childlike,which provides warmth and fun for the mountain children to write in the winter.