The best way to write Enjoy a writing experience like never before with a Pilot Frixion rollerball pen. Now you can make aching wrists or hand cramp when writing for long periods of time, a thing of the past. With a specially formulated ink that can be easily erased, the Pilot Frixion eraser rollerball range gives you more control and convenience with your writing. What makes this pen so unique is that the ink disappears completely with the help of friction generated heat, leaving no trace behind. Not only do you get the opportunity to use this pen time and time again thanks to it being refillable but you can also create fine lines thanks to the 0.7 mm tip.