This frosted glass bottle contains 70ml of TWSBI Midnight Blue fountain pen ink, and comes with a conical insert for easy pen filling.
The top of the TWSBI Diamond 50 Inkwell is also interchangeable with the top of these 70ml ink bottles, for another easy way to fill compatible pens.
Life is too short to live without the TWSBI Midnight Blue - 70ml Bottled Ink. Be happy. Be Content. Be Satisfied.
Inventory Last Updated: Oct 16, 2021