Online double sided pen ink cartridges, universal refills, compatible with all common fountain pens, even Lamy pens 5 spare cartridges colour black, 17306/12

FOR EVERY FOUNTAIN PEN: Are you bored of writing with the same fountain pen every day? These double-sided ink cartridges are compatible with all common fountain pens, even Lamy pens. PEN REFILLS KIT: Universal ink cartridges, 5 pieces. Refill cartridges for home and school. Usable on both sides. One side fits on Lamy ink pens, the other side fits all other standard pens. LONGLASTING: Extra large. More value for money! Ideal size for people who write very often, no need to change the cartridge so often anymore. PREMIUM INK: The high-quality ink (waterbased) guarantees an intensive color and consistent quality, available in many different colors. Not erasable. ONLINE BRAND QUALITY: Online is a German company founded in 1991 and specialises in pens, calligraphy kits, pen cases and much more. Online offers high quality only!