Holbein Irodori Artist Gouache is a series of high-quality matte watercolours that offer exceptional handling and excellent ratings for lightfastness. Each color in the series draws inspiration from both history and nature, allowing artists to experience Japan's rich beauty and delicate expression in spring, summer, autumn and winter. Conforms to ASTM-D4236 - Holbein Irodori Artist Gouache - Summer, Set of 12, 15ml, TubesHolbein Artist Gouache, IRODOR SMMR 15ML 12S - Includes a 15ml tube (5oz) each of White, Black, Edo Purple, Oriental Blue, Ultramarine Blue, Bamboo Green, Evergreen, Spring Green, Taisha Brown, Canola Yellow, Orange Yellow and Scarlet.