The Copic Multiliner Pens are a favourite amoung architects, designers, illustrators, and sketch artists. The fine lines and detail are unmatched in any other brand. Pigment based ink is waterproof and wont bleed or smear when used with COPIC Markers.

Pigment-based ink
Waterproof, bleed proof, acid-free, archival quality
Compatible with Copic Markers
Photocopy safe