Dr Ph Martin's Bombay India Inks are highly pigmented and beautifully vibrant. Lightfast, permanent and waterproof when dry, these are excellent inks for calligraphy and superb for addressing envelopes. The inks can also be diluted and used with water for brush lettering and are supplied with a dropper style lid.

Acid Free, Pigment Based, Archival Grade, Lightfast, Waterproof.

Please note these inks are not suitable for fountain pens.