Calligraphy is a noble, old art-form and this ink does it justice - available in 18 lightfast colours with carefully chosen pigments to ensure colour brilliance. The 14 blue-capped bottles contain thinner, more transparent inks with a satin finish. They're suitable for dip-pens, fountain pens, technical pens and airbrushes. In addition, there are four red-capped bottles which are opaque and should be used with a dip-pen or brush. Winsor & Newton Calligraphy Inks have a permanence rating of AA or A but are not waterproof.