Caran d'Ache Grafcube RGB Graphite Stick - Prussian Blue

Named after the famous Red, Green, Blue coding system, these watersoluble colored graphite sticks are perfect for creating delicate washes on large surfaces. Applied dry, they retain the original properties of graphite — their subtle hues reveal themselves only when they come in contact with water.

Available in Carmine Lacquer, Dark Phthalo Green, and Prussian Blue, each stick creates a 3-in-1 effect that includes the depth of graphite, the transparency of watercolors, and bright, lightfast colors. The sticks measure 4"L x 1/2" square.