Boko-Undo is Japanese manufacturer know for high-quality art materials whos technology is built on traditional ink-making techniques that have existed for over 200 years. These watercolors are made by kneading pigments and pastes into a dry state. The Basic Colors palette features six primary colors in a flower-shaped ceramic dish: Yellow, Young Grass, Patina, Ultramarine, Red Plum, and Ocher. Use the empty center dish for mixing colors.