Viarco is a family owned business located in northern Portugal that has been making premium artist drawing materials since 1907. They have developed unique blends of graphite, carbon and binders to produce some of the highest quality sketching materials available today. These water-soluble graphite stick can be used wet or dry. Create a wide range of graphite grays from deep black to more transparent shades that are completely erasable! Perfect for studio use or plein air artist. 2 sticks per card.