Pigma ink, invented by Sakura over 30 years ago and continues to be the most reliable permanent ink on the market today. The unique formula is based on more complex pigments rather than unstable dyes, making Pigma ink the standard for what is defined as reliable, permanent and archival quality ink. The same Pigma ink is available in Pigma Micron, which is created for precision while the Pigma pen is ideal for those who need high quality and archival ink paired with a sturdy nib. In this set there are 3 Pigma pens, 2 x Pigma Pen 05 with a nib size of 0.3 mm and 1 x Pigma Pen 10 with a nib size of 0.7 mm. Enjoy the high quality of the Pigma Pen with a sturdy nylon and fiber nib. The Pigma Pen is ideal for those who need high quality and archival ink paired with a sturdy nib. The Pigma Pen comes in two nib sizes: The Pigma Pen 05 (0.3 mm plastic nib) and the Pigma Pen 10 (0.7 mm bullet nib). The Pigma Pen is suitable for different applications like: Daily use, School and work, Graphic art, Scrapbook, Archival recording and ink illustrations, Freehand art, Patterning and Zentangle artwork.