Arteza Disposable Fountain Pens, Blue - 12 Pack (ARTZ-4384): Our set of 12, blue ink, fountain pens is fit for everyday life, as well as school work, journaling, and creating artwork. Our Disposable Fountain Pens medium nib delivers the ideal size of a 0.9 mm line every time. The free ink system means that our pens are all-in-one, so you won’t have to worry about purchasing ink cartridges. Our disposable pens conform to ASTM D-4236 standards making them completely non-toxic. Write with the comfort of knowing your pen won’t skip, with our Disposable Fountain Pens. Every home, classroom, and business needs a reliable set of pens.