This 30ml glass bottle of Jacques Herbin Diabolo Menthe turquoise fountain pen ink is elegantly labeled and has an integrated pen rest. Jacques Herbin ink is non-toxic and pH neutral, water based, flows smoothly, and uses all natural dyes.

Diabolo menthe (Mint lemonade green or Peppermint soda): the name comes from a popular non-alcoholic French beverage made of peppermint syrup and club soda.