I bought this specific diabetes for a child in the 3rd grade, so that they can handle it better. Its positives are that the tip goes inside when it is not being used, so it is not dangerous, and that a pencil can be used so that the tip does not get lost. What I didn't like so much is that if it is used by an inexperienced child, the opening gets bigger and the circle is not perfect (like in the ones with wheels).