Add a little pop of color and design to your project with the Pure Green ZIG Memory System Millennium Pen by Kuretake. This .35mm pen is an ultra-fine marker with smooth-flowing ink that is great for sketching, journaling, doodling, technical drawing, and more! Included is one 0.35mm (03) tipped pen that features a water-based pigment ink that is photo-safe, xylene-free, lightfast, odorless, and acid-free.