These large tubes of oil colors offer artists true color for a real value and are intended for painters who are increasing their knowledge of techniques, or experimenting with new ideas. They are made from approximately half the colored pigments of artist grade oil colors and include added extenders that have good film forming properties. Each extender is paired with the pigment so that opaque colors remain reasonably opaque and transparent colors are not clouded. The 1980 Oil Colors can be used together on the same palette as Gamblin Artist’s Oils.