Ink Institute Circular Line (環狀線) fountain pen ink is a bright yellow color, representing the colloquial name of this metro line - the yellow line.
Ink Institute's Taipei Metro Series of inks are based on the 6 metro lines running through Taipei. The Taipei metro system is one of the most clean and efficient in the world. Its first line opened in 1996 and since then has expanded to 6 main lines servicing 117 stations.
Ink Institute has been making custom inks in Taiwan for years, but has just recently started releasing their own line of inks.
- Volume: 30ml
- Bottle Material: Glass
- Color: Yellow