These Jkapagzy ink cartridges are designed with a dual-bore caliber of 3.4mm and 2.6mm, intended to fit a variety of fountain pen models. The housing is made from flexible polypropylene, and the water-based dye ink provides high contrast on recycled paper. These are a cost-effective option for students or high-volume writers who go through ink quickly.
To ensure a proper seal, it is important to verify that your pen's feed is compatible with either the 3.4mm or 2.6mm bore. Because the ink is a low-viscosity formula, it is best to use the pen regularly to prevent the nib from clogging. While the cartridges are designed to be universal, they may not fit certain proprietary systems like Lamy or Parker, so checking your pen's specifications beforehand is advised.
If you are looking for a complete pen set that includes the ink rather than just the refills, the Eacpokc Premium Gel Pen set provides a ready-to-use writing solution.
Find more specialty ink and pen supplies to keep your home office running smoothly in our gel ink pen multicolor packs category.
