Grafcube water-soluble 10mm RGB

Graphcube RGB is a 2-in-1 art supply that combines the qualities of a water-soluble pencil with a graphite stick. Its cube shape provides an excellent grip, and allows you to achieve a large range of line qualities, from thin and detailed to large, bold blocks of graphite. Once activated with water, like you would a watercolour pencil, the subtle red/blue/green hue of each stick becomes visible.

The Grafcube RGB is equal to 3B in hardness, and has exceptional lightfastness wether used dry or with water.