Dr. Ph. Martin's 400058-XXX Black Star India Ink, 1.0 oz, Black (Hi-Carb) Black star hi-carb India ink in a 1.0 oz glass bottle with dropper Provides a lightfast, archival, dense high carbon black finish Works best on acetate or where density and line integrity are most important Ideal for technical and calligraphy dip pens Made in the USA