Frixion marker has a Thermo-sensitive ink formula that disappears with erasing friction or with the touch of a hot iron! Ink will not smear, will not wash off or rub off. Chisel tip, light ink, set includes three colored markers (blue, red and green).
As with any erasable marking tool, SANE recommends testing on a scrap before using.
Frixion Erasable Chisel Tip Markers – 3 Piece Set