6 pieces in a case in 2 point versions: 4x B, 2x S. Ideal for sketching, studying and ink drawings. Particularly suitable for hand lettering. Ink with high light resistance. The light resistance is provided with an asterisk in every color: *** very good LB / ** good LB. / * sufficient LB. Long service life and high comfort. Permanent after drying. Fast drying. Fixed point.