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These rollerball pens contain heat sensitive ink. Just rub the end of the pen over the lettering and the ink vanishes with no marking and no messy rubber bits!
…with the attached eraser stud and start again. The unique ink responds to heat generated by rubbing with the eraser and goes clear, allowing you to colour over again. Perfect for all ages and with a number of practical everyday uses, FriXion Colors is much more than just a felt-tip coloring pen.