Keep smiling 12 pieces tubes multi colors glass colors starter set with 1 brush, glass artists’ paints color may be thinned with water.usually, however, glass paint colors are applied thickly and result appears like that of oil colors. Many artists prefer glass colors because glass colors dry much more quickly than oil colors and are practically odorless. Using for painting in glass. Color: multi colors. All multi colors in box. 12 pieces/box.