Sailor Fountain Pen Nano Ink Cartridge - Blue Black - Pack of 12

I got this to use in my Sailor HighAce Neo and it does not show through Moleskine Cahier paper at all. I have used this ink on a variety of papers and it does not feather on any of them. I've noticed some inconsistency in ink flow (sometimes light, sometimes dark) but I chalk that up to using such a fine nib. For no feathering and and no show-through it is definitely great stuff - and I love the color.

Picked up a pack of these to refill a Sailor "INK PEN" I bought at Daiso a few years ago. Brilliantly smooth and reliable ink, even in a cheapo pen. Can't be happier with it, I'll likely buy a bottle so I can use it in other pens.

This is a beautiful, classic-looking blue-black ink that is permanent, and flows well. I use it in the inexpensive Sailor HighAce Neo fountain pen, which is also sold by JetPens, and the it writes like a million bucks. It's a terrific combination!

Great flow and an excellent ink choice if your workplace frowns on "expressive" inks of various colors. I like the shade and no feathering as the other reviewer stated. Would recommend.

This ink is beautiful and plays well with Moleskine paper. Highly recommended.