Prismacolor Fine Line Illustration Markers come 005 to 08. Multiple tip sizes mean these markers can handle any type of illustration. Choose a Fine tip for crisp line and detail work, a Brush tip for the control and flexibiity of a brush, or a chisel tip for smooth lettering, outlining and coverage of large areas. These markers are archival quality, acid free, permanent, and contain premium pigmented ink. They are smear resistant when dry, lightfact, nontoxic and water resistant with no bleed through. *(Results may vary based on paper characteristics)