For now (1st day of use) I will give it a 3/5 because my little one (17 months old) can't manage to write with these specific markers at all on paper, unlike with simpler markers that we have succeeded with from other children of older age. I tried it myself and you have to hold it completely vertically to write. However, the little one found a different way of using it, somewhat like finger painting, meaning she puts her finger on the marker tip and gets ink which she then uses wherever she finds..