Set of 6 water-soluble graphite pencils FABER-CASTELL Graphite Aquarelle HB. Medium hardness (HB) with a specially designed pencil that is particularly break-resistant. Body made from PEFC-certified wood with eco-friendly water-based varnish. Ideal for creating graphite in watercolor style, drawing, shading, and mixed media techniques. The graphite core fully dissolves in water, providing smooth gradations. After drying, the results remain stable for layering.