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 Metallic GreenChartpak Schmincke Aero Color, AERO MTLC GRN 28ML - The Aero Metallic shades stand out due to their special brilliance and shininess. They produce unique color effects when combined with bright and effect colors.