Colours included in the set: Lemon Yellow, Process Magenta, Process Cyan, Sepia, Emerald Green and Scarlet. FW Artists Ink is an acrylic based pigmented water resistant ink, all of which have either a 3 or 4 star rating. Such a degree of lightfastness over such a range of fully intermixable colours makes them ideal for use by artists in the production of pictures for permanent display. The inks, being pigment based, are strong and rugged. Colours can be substainally diluted to achieve the most subtle of tones, very similar in character to watercolour. Such washes will dry to a water resistant film and successive layers of colour can be laid over in highly predictable manner. Clearly the combination of subtle tone work with strong colour overpainting suggests really interesting creative possibilities. Many graphic atists and illustrators will enjoy the particular handling and colour characteristics of FW and can be assured at the same time of permanence as well as good reproduction. FW Artists Inks work well through airbrushes and technical pens which can be cleaned by using Airbrush Cleaning Fluid.