With this bottle of invisible ink, or encre invisible, those messages that you wish to keep hidden will stay hidden.
Instructions read: Use on white paper. After drying, the ink will turn blue when heated. Writing disappears when paper is cold.
- Bottle contains 30mL of this stealthy ink.
- Ink appears pink in the bottle, but writes clear.
- Writes best with quill pens, glass pens and nibs.
- Not suitable for fountain pens.
- Water based solution.
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