Jinhao Fountain Pen Blue Ink Cartridge International Standard 2.6mm Bore Diameter Ink Refill Set of 30 PCS

These are perfect. They help me keep my fingers clean and avoid the mess of using loose inks.

Nice and easy to use

Only fits their brand of pen

I bought these ink cartridges because they were said to fit in the Amazon Basics fountain pen, which was my first fountain pen. I am still new to inks and pens but I can tell you that these Jinhao ink cartridges do work for that pen pretty well, and are a lot longer than the cartridges that came with the Amazon Basics pen. I use that pen for everyday writing, and I know that I will still be using these cartridges for probably over a year before needing to order more. I will note that they are too long for the Speedball fountain pen I picked up at a local art supply store, but I don't like that pen as much anyway. I am now waiting for a Jinhao pen to arrive and enjoying these cartridges. Pictured is the Amazon Basics ink cartridge (that I use in my Speedball now) compared to one of these Jinhao cartridges with a dollar bill for reference. The other picture also shows the cartridge currently in my Amazon Basics pen that I have used about quite a bit of compared to the dollar bill and another Jinhao cartridge completely full and on its own. I hope to switch to bottled ink when I finish with these to waste less plastic and have more color variety but I will likely use the Jinhao cartridges day-to-day when I return to working in an office and want the added convenience. I like that there is a blue option for the ink.

Nice variety of colors. The inks are gorgeous and richly colored, and the cartridges fit my Jinhao 82 fountain pens. Great value for the money!

Arrived quickly. Fit perfectly.

I bought those cartridges, because they claimed to be standard cartridges, fitting my fountain pen. They might be, but they did not fit in my pens. They fit somehow, but not good enough to use them. When the fountain pen is not used for a few hours, no ink is coming out anymore. It's just a nightmare. I always used Pelikan cartridges, which cost about 3 times as much and was trying to change to a more economical version. Wrong!!! I ordered Pelikan again and they work just wonderful. Forget those. Stick with something, which works.

these cartridges didn't fit my pens.

Todo muy bien, cumplen su función, llegaron en el tiempo prometido

These are a little narrow for some of the bigger brands of fountain pens (ie Lamy) but they're lovely for the Asian brands that I have and fit my J Herbin brand rollerball pen (https://www.amazon.ca/gp/product/B00A6VZYKE/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1), which as a side note is a nice pen option to have and I would suggest it for any ink lovers. These do not fit Schneider brand rollerball pens (ie: https://www.amazon.ca/gp/product/B07MPHQXVP/ref=ppx_yo_dt_b_asin_title_o02_s02?ie=UTF8&psc=1)

When firmly inserted in the pens of the same brand, all the pens leaked out the nibs. Caps filled with ink and when you took the cap off you had ink everywhere

万年筆をよく使いますので、二回目の購入をしました。綺麗な黒色です。インクの流れも良く、スムーズです。コストパフォーマンス抜群です。

コンバーターが不良だった（新しいコンバーターも二個送って頂きました）ので、購入しました。色は、ペリカンのロイヤルブルーより若干濃い色合いです。パイロットのブルーブラックの青色を強くしたような色です。初めて使いますが、私は気に入りました。