NOODLER'SInk Refills St. Patty's Fire Bottled Ink - ND-19175

Be careful when ordering the cap on the ink was loose. But amazon made it right and refunded the money immediately so another could be ordered. The ink works wonderfully in my pens. Write very smooth. It is vivid.

I use this ink in a variety of pens. One pen I use it in is the preppy petite refillable felt tip marker; I also use it in a few different calligraphy pens. It can be used to mix with other inks of a similar type and it can be used with a brush to paint with ink. Overall a very high quality ink.

I use this ink to highlight with my Pilot Parallel. It's bright and not so dark as to make reading the text that is highlighted difficult. However, if you are a teacher who happens to be projecting something on a document camera and you use this ink, then it can be too dark. If you're projecting, I would stick to Firefly yellow highlighter ink. Otherwise, it's perfect for highlighting in books and on paper.

I love this ink in my highlighter preppy. I use it everyday at work. I used to go through a highlighter a month but now I can just refill an go.

Perfect ink for research and studying. Wish it was a bulletproof ink though.

Works great as a highlighter ink. Combine this with Konrad brush tip pen to replace all those highlighters that would otherwise be an important part of your academic life and a tiny part of a landfill.