Sailor Jentle Ink 50ml // Oku Yama
This smooth-flowing ink is specifically formulated to be safe for all fountain pens.
Each bottle contains 50 ml of water-based dye ink. The bottle is designed with an internal reservoir, which results in an ink level that's high enough for you to refill your fountain pen. Simply flip the bottle upside-down and back to fill the reservoir, and you're ready to refill your pen.