Sakura Pigma Professional Brush Pen writes like a pen and paints like a brush. Swirls, doodles, fine lines and broad brush strokes are possible with this flexible brush-tipped pen. Archival quality ink is chemically stable, waterproof and fade resistant. Will not smear, feather or bleed through on most papers. Keeping up with your imagination is effortless. Pigma pens are comfortable to hold and respond to instant changes in pressure or direction. Illustrators, Manga artists, cartoonists and hobbyists can put pen to paper and leave a mark that will last a lifetime with the lasting quality of Pigma ink. Classroom Pack includes 72 pens, 24 each of fine brush, medium brush and bold brush nibs. Black.