FABER-CASTELL-Pitt Artist Pen: Manga Set. These artist pens feature maximum light-fastness; waterproof; pigmented drawing ink and are acid free. This package contains eight pens: three 199 black (small nib; medium nib; and brush nib); and five shades of grey: 232; 233; 235; 272; 273 (all brush nibs). The pens come in a reusable 6x3-3/4in storage pouch. Conforms to ASTM D4236. Imported.