So for this review, as you can tell, we are looking at the Caran d'Ache Museum Aquarelle, a water soluble pencil, Caran d'Ache have a few water soluble pencil sets in their range, but the Museum Aquarelle are their top grade water soluble pencil. We have reviewed the Caran d'Ache Supracolor Soft II pencils of which are water soluble and excellent pencil, however, the Museum Aquarelle take it to an entirely new level.