Black writing ink for RIMIK Rainbow Ink Mixing Kit

Product name: Black writing ink for RIMIK Rainbow Ink Mixing Kit for fountain pens 50 ml writing ink in pure black. Suitable for use with our RIMIK mixing set. Octopus Fluids® writing inks are exclusive inks with pleasant shades, low feathering, optimal drying time, quick writing properties and soft, supple nib control. With our Rainbow Ink Mixing Kit you mix your own, very personal writing colour. And that's how it works: The kit contains four writing inks in the basic colors cyan, magenta, yellow and black. The three basic colors cyan, magenta and yellow can be mixed together in different mixing ratios. Depending on the mixture you get a different color. You can now carefully use the color black to darken your new color mixture.