For professional and aspiring artists familiar with PIGMA Micron, these new grays are designed for anything from precision shading to covering large areas. These pens are ideal for anime, illustration, cartooning, pen-and-ink drawing, scrapbooking, and other detail work. Details: Gray and black Includes multipe tip sizes and brush 10 pens Pigma ink is permanent, fade resistant, chemically stable, and will not bleed or run after the ink has dried Contents: 1 each: 01, 05, 10, BR Light Gray (#42) 1 each: 01, 05, 10, BR Cool Gray(#44) 1 each: 05, 10 Black (#49)