Copic Multiliner SP pen refill ink is archival, waterproof, bleedproof, and pigment-based ink that is very convenient and environmentally-friendly. Photocopy safe; will not dissolve toner; compatible with Copic markers. Architects, designers, illustrators, and sketch artists love these long-lasting inking pens because they provide the highest quality for all inking demands. Multiliner SP black ink refill cartridge TYPE A fits 0.03, 0.05, 0.1 pens. Copic REFLA Multiliner SP pen refill ink.