Pilot 4 Colors Ballpoint Pen Acroball 4 Extra Fine Black Red Blue & Green (BKAB-45EF-CSL) + Refill 4 Colors 0.5mm Set

The rubber on the pen lets you write for a couple of hours without making your fingers sore. The pen writes smoothly and the ink never stops eveb if you drop your pen. Comes in with black, blue, red and green inks so you can take notes and doodle with different colors. And if you get fidgety, you can play with the retractables without damaging your pen. And if your pen's ink is empty, just replace it with an refill of the color you need.

excellent pen and inexpensive alternative to pricier bic which is hard to find comfy to hold

I am not a fan of rollerball pens, however this was only multi-color refillable pen I could find. Surprisingly it writes like a gel ink based pen! I thought I might be able to hack it with energel refills, but the cartridge is much too large. I like the multi color pens as I only occasionally use color other than black, so it's nice I can have those occasional colors in one pen versus having to carry around 3 extra pens in my pocket I might use 1-2x a day.

One of my favorite pens, it's thick enough to sit comfortably in your hand but not too thick that it's awkward to write with. I love the multi-colors to use for studying for school or at the hospital to color code my report sheets. The only complaint I have is how quickly I run out of ink, I am using them daily but I've had other pens that seem to last much longer. I'll be hunting for just the refill packs though as I do love the functionality of the pens.

Love these pens. Thin point is great. Ink quality is great. Doesn’t smear. Writes smooth. Good grip. Love that there are refills.

I love this pen- it's actually the third one I've gotten for me. I got it with the refills so I could refill one of the other pens I have. The thickness of the lines is just perfect for work, and the different colors help me differentiate what I'm doing on the page so I can keep everything straight. It's easy to hold too, with a comfortable grip.

The product did not disappoint as it writes smoothly

I have bought this item several times and never disappointed. Writes so smooth and has fine tip. 4 colors to choose from at any time and comes with extra refill for each color

This pen is one of those small upgrades that makes a noticeable difference. The ink flows smoothly with no skipping, and having four colors in one pen is genuinely practical—especially for planners, notes, or color-coding anything. The grip is comfortable for longer writing sessions, and it feels well-balanced rather than bulky. Refills are easy to find, which adds to its longevity. It’s not flashy, but it’s reliable—and that’s exactly what you want in a pen.

It is exactly as what I'm expecting.. Great product! Clean and thin ink for signing and writing chart.