This is for 1 pcs. Holbein Acryla Gouache SetsUnit: Set of 12Size: 20 mlGroup: #11566Acryla Gouache is an ideal medium available to the artist, designer, illustrator and student. Acryla Gouache has pigmented colors, including metallic and luminous finishes, in an acryl resin which will dry to the same smooth mat finish as does the Holbein Designers- Gouache in gum arabic. Acryla Gouache moves, reacts, blends and feels like traditional gouache but is effectively waterproof once fully dry. It is rated for light-fastness, adapted to the Munsell color standard for hue, value and chroma and is made from the purest pigments available. Acryla Gouache may be used as a successful found that will not contaminate over painted layers. It will not shift in color tone from liquid to dried color. Hence, what you see wet is what you get dry. Acryla Gouache does not have as fragile a surface as traditional gouache in gum arabic and is compatible will all other water soluble media regardless of origin. An ideal medium for hobbyists and carvers as well.