**Feature** Non toxic and pH neutral Lightfast - Water based Flows smoothly and is fast drying All natural dyes Vert Reseda J. Herbin Fountain Pen Ink comes in a 30ml glass bottle and features a beautiful turquoise color - Vert Reseda that is lightfast and water based made . Use this quick drying， smoothly flowing ink in your favorite fountain， rollerball or glass pen. Handcrafted in France each ink is colored using all natural dyes and is both non toxic and pH neutral.