Studio Gouache colors are vivid and intense. Studio Gouache is ideal for making models, student projects, decorations and illustrations. Like watercolor, gouache is a water soluble paint. But the main difference lies in the opacity. This set includes 12 tubes of 12 ml. Properties: Colours: concentrated, vivid and resistant to light. Opaque mat finish. Brush cleaning: water Materials: paper, card, cardboard Drying:  Dries in a few hours depending on the dilution of the paint and the absorption of the paper used.