Available in Black, Blue & Red (Pack of 3) & Green (single Refill) Refills for Pilot frixion 4-Colour Pen Only Erases cleanly by friction-generated heat, leaving no debris. Uses the same ink to write and over-write. CAUTION - This product is not recommended for signatures, legal documents, examination papers or other documents where writing needs to be of a permanent nature. To avoid accidental erasure, do not leave writing where it may be subjected to high temperatures for a prolonged period. .
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