ArtGraf Viarco Tailor Shape chalk - Colour - Sanguine; Good Lightfastness; Extremely soft, rich and water-soluble tailor shape chalk; Block of Pressed Pigment and binders. Excellent and versatile tool for drawing & painting; Provides a wide range of shades from light transparent tones to deep rich opaque colours. When diluted with water act similar to ink or watercolour, can also be used as a dry medium. Ideal for travel and studio use