Erasable pens are not recommended for use on legal or official documents. Do not expose to extreme temperatures (less than 14 degrees F; greater than 140 degrees F). If pen is exposed to temperature that reaches 140 degrees F, the ink will be colorless when writing. To restore color, cool to at least 14 degrees F in freezer and the ink will again write in color.
Always refer to the actual package for the most accurate information