I have (now 18Monate) purchased these pins to my son. Through my work as an educator in a manger I knew this already. And I can recommend these pens for the kids warmly: by its size they are comfortable to hold. Since infants rely mainly with the whole hand (fist) they have the optimal thickness. Even the colors of her, I can only praise: they forge no, you do not press on too tightly and it can be wiped off well again from most surfaces. Conclusion: buy and try the first scribbles with the child !! :-)
