The Finest British Made Fountain Pen Ink Suitable for All Pens Named for Iris, Greek Goddess of rainbows, this little bottle of goodness contains one of the rainbow’s most beautiful shades - a wonderfully rich purple. Transform the way you create with an ink colour that sets you apart! Most pens offer ink cartridges in a limited selection of colours! I want to change that by bringing you this range of beautifully rich and distinctive inks - with no need to dispose of, or replace an empty cartridge. These wonderfully free-flowing inks come in a number of beautiful and nuanced shades. They truly are a joy to write or create with!