Uni Fanthom Erasable Gel Pen - 0.5 mm - Green

Uni Fanthom Erasable Gel Pen - 0.5 mm - Green

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4.0 (3 reviews)
DescriptionSpecificationsFrequently Asked Questions
Now you see it, now you don't! The Uni-Ball Fanthom is the latest erasable gel pen line from Uni Japan. Like the Pilot FriXion, it's thermo-sensitive ink can be erased by heat created from friction! Just rub the rubber area on the cap across the ink to see marks disappear like magic. The special shaped rubber end allows you to erase smaller areas with the tip and larger areas with the broader side. You can erase while the pen has the cap posted on the back, which is an improvement over the Pilot FriXion. You can rewrite over the same surface again and again, without messy residue from correction tapes or white out. Pens come in a nice thin 0.5 mm size.

Ink color disappears when temperature reaches over 60 C (140 Fahrenheit). Interestingly enough, the ink in these pens will actually reappear when the temperature reaches below 0 C (under 32 Fahrenheit). A freezer is sufficiently cold enough to make the ink start to reappear. It is like a magic pen for adults!

Because the ink in this pen is thermo sensitive, we do not advise for it to be left in hot cars, used for mailing, or subjected to a condition that exposes it to a lot of friction!

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Customer Reviews

Very pretty emerald green...
July 19, 2010
Verified Purchase
Very pretty emerald green ink just like the barrel. Writes very smooth with no leaks or skips. Erases perfectly and the top of the cap is the eraser so you don't have to move it to erase once you're writing. Love these pens.
2 people found this helpful
Pros - the colour is...
January 23, 2012
Verified Purchase
Pros - the colour is so pretty! The ink is smooth, easy to write with and does not stain the page. The pen is comfotable enough and quite attractive.

Cons - while the ink is ersable the way the 'eraser' is designed is not as good as it could be. The cap is the eraser and it does not do as good of a job as the frixion erasers, it is quite hard and will ruin thinner paper. However, if you use a frixion eraser on the fanthom ink it works a treat! The ink itself is a little thin and gives the impression that it is running out, similar to the early frixion pens.

Overall - I like this pen. It is the only one of this brand I have tried so I cannot compare the brand overall, however, this pen has made it into my regulars with the frixions. I do prefer the frixion series because the eraser works better and I love side-knock (no caps to loose) and the ink has become more pigmented. If the next generation fanthom had a better eraser, no cap and more pigment (without leaving a stain) I would def be buying more colours.
1 person found this helpful
While I do enjoy this...
May 20, 2015
Verified Purchase
While I do enjoy this pen, it's not quite what I expected. Firstly, the green is not vibrate and more of a light minty grey/green than just green. I've also not really had success in getting it to erase. It's a good pen if you're looking for something different to write with every now and then, but on the whole it's not my first choice.