✅ LARGER PACK: 30 pack of 3.4 mm bore diameter black ink cartridges ( compatible with fountain pens take 3.4mm cartridges such as hongdian and wing sung ). Notice: These cartridges are not Standard Size.
✅ LARGER PACK: 30 pack of 3.4 mm bore diameter black ink cartridges ( compatible with fountain pens take 3.4mm cartridges such as hongdian and wing sung ). Notice: These cartridges are not Standard Size.