With Pilot Frixion Erasable Refills you can now refill your Frixion pen over and over again. Save money and the environment! The 0.5mm refills contain thermo sensitive gel ink and are suitable for Frixion Ball, Frixion Clicker, Frixion Pro and can even fit in Frixion Point. The heat generated by friction when rubbing the paper with the special tip turns the ink invisible. With no damage to the paper, you can erase and instantly re-write over your mistakes. Available in a wide rage of colours. NOTE: Do not use Frixion Products on legal documents or cheques, or when writing exams.