In this case, I'm not so excited about the pins.
The colors are perfectly fine, and the tip (1.0 mm) is fine, if a little thick as application surface. However, the pins are NOT dry wipe as being against. It is certainly on the film used, but the pins lubricated for tests on 3 different films. So I can not really do something for the school with it. The pins will feel more like lightweight plastic compositions, and color selection is relatively small.
For the price I prefer to take the more expensive pens of Staedtler, Lumocolor non-permament. These are refillable, the tip is thin and you can actually wipe.