Gel ink pens, highlighters and now markers are part of Pilot Japan's amazing FriXion line. These erasable markers write in vibrant colors yet erase wonderfully through heat created from friction. Just rub the rubber end over the ink to make it transparent, and you can write on the same area again and again!
Interestingly enough, the ink in these pens will actually reappear when the temperature reaches below -10 C (under 14 Fahrenheit). A freezer is sufficiently cold enough to make the ink start to reappear, you can watch a video on how it works here. 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.
The video below demonstrates how well these pens erase:
This is a great marker. It writes nicely, and is this for a marker. I can can
write kind of small or really large. As for the eraser it works. REALLY WELL. It
does leave a faint trace of the marker behind it. Its still really good though.
This marker at first is really good and the tip is perfect and everything, but
pretty sonn the tip will get all funky and kind of squashed and it will be
harder to write. also it runs out pretty quickly too.