Single 1oz bottle of StarBrite Ink .

From the manufacturer:
Chocolate Brown is a deep, rich color that serves as a strong foundation for warm colors and to blend shadows without the need for black.
This color is really good when mixing with Milk Chocolate, Venetian Brown, reds and oranges.
It will make those lighter colors more vibrant.
Chocolate Brown works amazing when using on realism, animal fur, wood grains, and even darker skin tones.