Copic Multiliners contain pigment-based ink, which is waterproof, archival and photocopy safe. Available in 7 sizes with polyester nibs and 2 sizes with brush tips. Fully compatible with Copic Sketch Markers and most other alcohol-based ink markers. Excellent for journaling, scrapbooking, design, comics, and any other detail work. Not refillable. Made in Japan.