Holbein Irodori Artist Gouache is a series of premium opaque watercolors offering outstanding handling and excellent ratings for lightfastness. Each color in the series draws inspiration from both history and nature, allowing artists to experience the rich beauty and delicate expression of Japan in the spring, summer, autumn, and winter. Conforms to ASTM-D4236. - Holbein Irodori Artist Gouache - Spring, Set of 12, 15 ml, TubesHolbein Artist Gouache, IRODR SPRNG 15ML 12S - Includes one 15 ml (0.5 oz) tube each of Antique Silver, Silver Grey, Bellflower, Dayflower Blue, Myosotis Blue, Seedling, Pale Patina, Light Ochre, Lemon, Kerria Japonica Yellow, Pale Coral, and Vermillion.