Schmincke Aero Color Professional Airbrush Colors are specially formulated for the airbrush but are also suitable for retouching pens, dip-pens, and brushes. Ready to use, water-resistant, and nearly odorless, they are available in 36 brilliant colors and 12 special effects colors. - Schmincke Aero Color Professional Airbrush Color - 28 ml, Aero Shine GoldChartpak Schmincke Aero Color, AERO SHINE GOLD 28ML - These colors produce a mother-of-pearl effect that shimmers discreetly on bright surfaces but gives off a metallic shine on dark backgrounds and when combined with transparent shades. Depending on the angle, there is a gradual color change from the color of the background to the actual Aero Shine shades.