Fountain Pen Ink Cartridge - Blue/Black (6 per card)

I bought the fine and the medium point versions since I had never tried either. In truth, I was shopping for a roller ball to use in my father's 50 year old Cross gold roller ball. Those were discontinued in 2005. These porous-point fillers are the only ones available that fit Dad's pen. I made the right choice because actually, I have two different needs in my work as a photographer that they satisfy to perfection. The pen flow reminds me of a fountain pen in consistency, much like the pens in use by my parents in their day. Thanks Cross for keeping Dad's heirloom on the job.