"span"These painters issue fluid, opaque pigment ink from a .05 mm Japanese nib, offering an immense depth of color, even on dark backgrounds. You can even use a brush to blend and create effects. The waterbased ink is solvent-free. "These painter pens are brilliantly versatile, clean to use and easy to carry when you are not in the studio - Stunning pigments, dense, vibrant and bright!" Society for All Artists, Professional Artist, Sharon Hurst. Available as singles, in sets of 5 complementary colours and a box of all 20 sensational colours. These flexible, free flowing line painter pens are the perfect friend for any artist - so have fun and experiment!