Pigmented India ink; High lightfastness; Waterproof, permanent; Odourless, acid-free, pH neutral; Does not bleed through paper; Nib size C = calligraphy 2.5 mm; Wallet of 4; Content: Colours 101 white, 188 sanguine, 199 black, 247 indanthrene blue; Ideal for calligraphic workPigmented India ink; High lightfastness; Waterproof, permanent; Odourless, acid-free, pH neutral; Does not bleed through paper; Nib size C = calligraphy 2.5 mm; Wallet of 4; Content: Colours 101 white, 188 sanguine, 199 black, 247 indanthrene blue; Ideal for calligraphic work