These acrylic colors have an ultra-thin, ink-like consistency that is excellent for dip pens and refillable markers. Includes Indigo (Anthraquinone), Sepia, Neutral Gray N5, Carbon Black, Iridescent Bright Gold (Fine), and Iridescent Silver (Fine) in a 1 fl oz (30ml) bottle. Great for washes, drips, pours and glazes. Made in the USA