Showcase your colorful style when you use the Millennium ZIG Memory System 5-Piece Pen Set by Kuretake. These pens are ultra-fine markers with smooth-flowing ink for sketching, technical drawing, journaling, and so much more! Included are five 0.2mm (005) tipped pens in black, red, blue, yellow, and green. Each pen features water-based pigment ink that is lightfast, odorless, photo-safe, acid-free and xylene-free.