Tono & Lims No.4 U & I - Tonocha Green is a teal fountain pen ink. No.4 is in the Tono & Lims Standard Line.
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: Teal
- pH: 9.5
- RGB: 132, 161, 168