Tono & Lims Donau is a blue fountain pen ink. Butterfly is part of the Tono & Lims Sura & Gucchi line of inks designed by ink meisters Sura and Gucchi.
Tono & Lims is a Japanese brand whose inks are a collaboration with South Korean ink producer, Lim's Lab.
- Volume: 30ml
- Bottle Material: Glass
- Color: Blue