This set of pigmented ink pens is great for all your manga and anime style comic artwork. The ink is permanent when dry, ideal for many techniques, including mixed media applications. The variety of nib sizes allow you to render fine details as well as bold strokes and outlines. Details:Black inkIncludes the following nib sizes: 0.05 mm, 0.1 mm, 0.5 mm and 0.8 mm4 pensAcid-freeResists bleed-through