The Pigma Micron pen is and has been the popular choice of artists and illustrators for drawing, sketching and fine line detail. However, it is also a popular choice for journaling, on planner pages, on scrapbook pages, and doing Zentangle(R) designs. Due to it's archival permanent ink, this pen is a perfect choice for using on legal documents & checks, maps, as well as laboratory notebooks, journals and log books. Micron pens are for use on papers, and will not bleed through most papers including thin papers such as bible pages. The ink is also water, fade and chemical resistant, and will not smear or feather when dry. The pen can be used on fabrics & quilt patches, as long as the material will not be washed. Non-toxic and safe to use as intended.