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Parents have a trouble that children like drawing on the hand.The children's hands will become dirty and full of bacteria.What is worse,These patterns are difficult to wash hands.
We want to design a pen,Disinfecting Pen, the children can use it to draw in the hands and don't need to wash. The picture will fade over time while the child's hands will be disinfected gradually.
It is not only let the children drow happily but the parents don't need to worry about the healthy of children.