Holbein Acryla Acrylic Gouache is a fast-drying, opaque acrylic based watercolor paint. Its water soluble while wet, and water-resistant, matte and opaque, even over dark surfaces. Great for grounds and layering. - Holbein Acrylic Designer Gouache - Set of 18, 12 ml TubesHolbein Acryla Designer Gouache, AG SCHOOL ST 18 12ML - Includes 12 ml tubes of 18 essential colors, one each Carmine, Scarlet, Orange, Jaune Brilliant, Deep Yellow, Lemon Yellow, Yellow Ochre, Light Green, Green, Viridian, Ultramarine Blue, Sky Blue, Prussian Blue, Violet, Magenta, Burnt Sienna, Jet Black, and Titanium White.