Pentel EnerGel-X Retractable Liquid Gel Pen 0.5mm Needle Tip Red Ink, Box of 12 (BLN105-B)

The Pentel EnerGel-X Retractable Gel Pen is fantastic! The .5mm tip delivers crisp, precise lines, and the ink flows incredibly smoothly without skipping or smudging. The red ink is vibrant and perfect for marking, editing, or adding emphasis in notes and documents. The retractable design is convenient, and the pen feels comfortable to hold for long writing sessions. It also looks sleek with its red barrel, combining style and functionality. If you’re looking for a reliable, high-quality gel pen that writes beautifully every time, this Pentel EnerGel-X is an excellent choice. Highly recommend!

Grading college student hand-written essays and typed papers requires having a reliable, consistent pen. Red ink in particular seems to have consistency problems--usually patchy, overly light flow, or blotchy, and that's especially true for fine points. For over 20 years of grading 1000s of student papers I could never find a reliable fine-point (or any other) red pen until I tried one of these. Hands down, without question, the best red ink pen I've ever used, now in 28 years of college teaching. As a left-hander, smeared ink is always a problem for me too, but this pen is absolute truth in advertising. I can write as fast as I want, as small as I want, and the script is fine, clear and smear-free. I keep several boxes in reserve just in case Pentel ever quits making them or they change the formula. For quality and price these are the best pens I've ever used for any task. I rarely review things on Amazon, but this pen is so good it was worth my time to praise something that works far better than anything else out there.

love my pens and they write so smooth

Great for a teacher who has lots of grading to do! Works well for left-handers, too.

I'm a teacher and need tons of red pens to grade. Love these pens! It writes smoothly, and I haven't had any issues with the ink being blotchy or clumping. I also compared this with the EnerGel Deluxe RTX (more $$) if you look at the photos. One picture, I took apart the two pens, the other picture, is both put together. As you can see, both inks are the SAME. The only difference is the slightly better, weightier construction of the EnerGel Deluxe RTX. If you like the ink, this EnerGel-X is a great deal, as the ink is the same. But if you want a slightly (and I really mean slight) better construction with the Deluxe (metallic parts to the barrel of the pen, and where you push down to click), you can go with the Deluxe. These are really light and comfortable with the grip, although I tend to light slightly heavier pens when I write. Can't go wrong with these though. I didn't think these were any less quality than what you can get at the local office supply store. I would highly recommend!

Of all pen brands, I prefer Pentel. It always writes smoothly and never globs.

EDIT/UPDATE: after getting through most of the school year, I have a few extra comments. First, the label stickers that come on these WILL eventually start to peel up. But if you rip them off when the edges start to peel, they leave sticky residue all over the pen. Very annoying. The pens also haven’t lasted nearly as long as I hoped. I use them a lot, sure, but some seem to last a while and some seem to be duds. Dropped to 3 stars for the annoyances. My search continues. Original review left below. As a teacher, I use red pens a lot. Im also kind of picky about them. So far, these are my favorite to use. Most people already know Energel refills are great: they last, they don’t really skip, the ink appears vivid and dries fast. But the energel-x delivers all that in a simpler, cheaper shell (which I actually prefer for red pens—I’m going to lose them in my bag, the classroom, or my house). Try them for yourself!

Great pens at a great price over the big box stores. Definitely buy again.