These pigment-based ink pens are great for details, fine art, design, comics, modeling, journaling and papercrafting. Set contains: 0.03mm, 0.05mm, 0.1mm, 0.3mm. Copic Multiliner Features: - Pigment-based ink, Waterproof & Archival, Disposable, Compatible with Copic Markers, Photocopy safe and acid-free.