Sakura Pigma Micron fine line art pens are waterproof, chemical proof, fade resistant. Quality graphic art pens will not smear or feather when dry. No odor. Great for graphic arts, sketching, pen and ink illustrations, freehand art, calligraphy, scrapbooking, letter writing, legal documents and more. Archival, AP non-toxic, acid-free. Set of 8 colors: Black, Red, Blue, Green, Brown, Purple, Sepia, Rose). .25mm tip Pigma Micron pens are quality-made in Japan.