Pentel 0.5 mm EnerGel Ink Refills - Red Ink (Pack of 12 Refills)

I used to buy these in person from a local stationary shop but I've since moved and hadn't been able to find them for ages so this was a godsend! I've used the same pen for years - since secondary school - and have only replaced the housing once by buying a whole new pen. There's no reason to constantly have to do that if the inside cartridge can be replaced, and these seem to function just as well and be true to the originals. Writes smoothly, ink flows nicely, no blockages or leaks over time, if these aren't originals then I can't tell the difference. They do fit into a specific model of Pentel pen but that's exactly what I needed

These refills are just what I needed for my Pentel pen. The ink is vibrant and dries quickly, preventing smudging, which is great for left-handed writers too. The refills last a long time and maintain their quality throughout. Easy to install and a cost-effective way to keep using my favorite pen.

I love using pentel energel pens so a 12 pack of refills was very worth it for me and has lasted me a few months so far. As a student these are the main pens I use and I only have to repurchase these around once a year, though I do not write essays and also have a lot of online work. The ink is very smooth and does not smudge if you let it dry for a bit. I would recommend these gel pens.

Now I dont have to throw away my old pen. Reduces waste and pollution. Good quality.

These pen refills can be used with the original pen and the Zebra Sarasa pen barrels if the original pen is a bit too big for you. The ink of these pens look very clean and neat and the most surprising part for me was that you could use highlighters with these and it wouldn’t smudge AT ALL. I’ve gotten lots of questions on this pen when I use it in school so overall, I think they’re absolutely worth it.

I am really fussy about my pens, and whilst I do like a good fountain pen, I can't use them as I get ink everywhere. This is the next best thing! Excellent roller ball, smooth ink, I am left handed so inky pens don't usually work well for me but this is quick drying. Works great on good cartridge paper. This is the only pen I have used for the last 8 years.

they write gorgeously and make me never want to buy a different pen again. tempted to gatekeep this pen so it doesn’t get sold out

Just bought some Pentel Energel Deluxe RTX Retractable Liquid Gel Pens and since I do a lot of technical writing, I thought I'd better stock up on refills. The refills are all individually wrapped & sealed in the box and although I've not used any yet, I'm confident that they will be equally as good as the pens themselves - excellent quality. Beats the Papermate Inkjoy pens hands-down....more readily available and cheaper too!