Uni Pin Fineliner Drawing Pens Complete Set of 9 Grades Black Ink Set contains one of each of the following nib sizes: 0.05mm, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, and 0.8mm. Uni's high quality "Super Ink" is not only water and light resistant, but also "Tamper-Resistant", meaning that the ink can not be washed of using chemicals and solutions used by people to fraudulently modify documents. Ideal for artists, illustrators, and designers alike. Buy Now for only with free UK delivery