The Holbein Artist Gouache Irodori Series (traditional Japanese colors) allows artists to experience the richness and subtlety of Japans four seasons: spring, summer, autumn, and winter.The Irodori collection brings together 48 of Japans most beloved traditional colors. Inspired by seasonal changes and rooted in history, each color reflects the beauty of nature and carries a meaningful name. Holbein Irodori gouache is easy to work with, delivers excellent opaque coverage, and offers outstanding lightfastness.The Winter Set includes 12 colors in 15?ml tubes and meets ASTM-D4236 safety standards. Perfect for artists seeking high-quality, traditional Japanese hues with professional performance.