One 60 ml glass bottle of Platinum Mix Free fountain pen ink only. Other ink color bottles and ink mixing kit sold separately.
Using the power of chemistry and the potency of pure and balanced dyes, Platinum allows you to create the fountain pen ink color of your choice. With the Platinum Mix Free fountain pen ink system, any color is possible! The nine different colors of the Mix Free ink line can be mixed in a plethora of combinations to make brilliant hues, delicate shades and rich, deep tones.
The image below is an extended version of the 1:1 mixing ratio color chart included with every ink bottle: