Set with 8 Pitt Artist Pens in different nib sizes plus a notebook. Highly pigmented water-based India ink​​. Ink is ­acid-free, ­odorless and archival (pH neutral) . Our ink contains the highest quality pigments for ­unsurpassed lightfastness (resistance to fading) ​​​. Does not bleed through the paper​​ Smudge and waterproof when dry​. Sketchbook includes 40 pages for illustration​. Excellent Value price for 8 pens + sketchbook! 8 Pitt Artist Pens black​: XXS, XS, S, F, M, 1.5, B, FM​