The most long used model in the Copic family. Twin-type (broad&fine) alcohol-based marker that does not melt copy toner. Used by designers, such as architecture, fashion, and interior. Alcohol dye ink; Nib (tip shape): Broad & Fine; Body: Square shape; Coverage area: 5 B4 sizes; Nib replacement: Yes; Ink refillable: Yes; Airbrush compatible; Good design, long life design product