PILOTFrixion Ball Knock 4 Color Gel Ink Multi-Pen, Black (LKFB-80EF-B)

The ink may disappear, the eraser lasts long but after about 2 years it’ll smear. I’m on my second and I love it. After a few months I noticed what some notes I wrote in my notebooks disappeared. So be careful about that. I highly recommend.

The Pilot Frixion Ball Knock Multi-Pen is perfect for carrying in the field. Having four colors in one pen makes organizing notes easy, and the erasable ink is incredibly convenient—especially when making quick markups and edits. It writes smoothly, erases cleanly, and is a reliable tool for anyone who needs flexibility in their writing.

I'm a pen lover, and I have used many, many types. Calligraphy fountain pens to felt tip to rollerball and ballpoint. This erasable, multi-color pen is the best I found so far and I keep one in my work bag, at my home desk, and one at my work desk. I bought some for people I know love pens and they absolutely love it, too! The ink cartridges are affordable and easy to replace. Having the ability to erase mistakes saves me tons of time while proofreading/editing writing. This is easily the most cost-effective product and tool for teachers, writers, and anyone who spends a lot of time writing by hand! A+++++

I love this pen because it's erasable and I can write in different colors quickly.I DIY stuff out of wood and 3D print stuff. Love that I can sketch a shape in black - write dimensions in green - mark any cuts/holes in red and use blue for notes or whatever. It's perfect for what I'm doing and makes it easy to jump back into a project I haven't touched in months and understand what I was doing at the time.The black is really a dark grey and all the colors are comparably muted. But they are different. At first I was a little annoyed with the colors, but being erasable makes it worth it for me. Now I have one of these on my desk, in my bag, and in the work shop. If I don't need to erase I will grab another pen so it's not perfect. But it has a well defined job in my day to day life.

What's there not to like here? A multi-colored pen along side the friction erasing technology? This erasable pen functions as hoped compared to the gimmick of pens sold in the past with a guise of being "erasable". Use this with confidence that if you make an error, you can remove it, and go again.

Bought this to lighten up my EDC, and while the colors look good and it writes smoothly (for a short while), after maybe two uses in as many months, every single color has completely dried out. Tried everything to get them started again, to no avail. Incredibly disappointed.

I purchased this and another offbrand of the multicolor gel pen with erasable ink. This one hands-down is way better. I decided to keep the other one because it’s just a pen however, I will not purchase from the other company again I will definitely purchase another of this brand, which also works well with my Rocketbook notebook

Seems like a good pen at first. Eraser works great and it writes nice but it runs out of ink so quickly! So disappointed because I really liked it at first but it ran out of ink so fast. I expected more use out of it, Not worth the price!