Viarco is a family owned business located near Porto in northern Portugal. They develop unique and proprietary blends of pigments and binders to produce some of the highest quality sketching and drawing materials available to artists today. This Monochrome 3 Disc Set includes 1 each of White, Black Carbon and Graphite water soluble tailors chalk, which was inspired by the traditional tailors pencil. This water soluble graphite is created with a unique formula of pigment and binders that produce intense colors that are ideal for dry or wet techniques and allow artists to create an infinite number of hues and tones. Perfect for travel or studio use.