Sakura 48081 Permapaque Opaque Blister Card Dual Point Marker, Black Opaque ink coverage No smears, feathers, or bleed-through on most papers Odorless, quick drying and non-toxic Archival quality ink chemically stable, waterproof, and fade resistant on paper Writes on canvas, plastic, metal, glass, wood crafts, ceramics, coated paper and vellum