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Got Four Secret Friends?
You can all write secret, invisible notes to each other with these medium-point marker sets. The white marker writes with invisible ink. The black one seems to write in black ink-but cover the invisible message with that black ink, and the writing shows up in red. Eventually. So if the secret police catch you and scribble on your message with the black marker, it may take a while to show up. With luck, it'll be long enough for you to talk your way out being grounded, and to eat the message. You'll get (5) sets of 5"- long pens.
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36527 INVISIBLE MARKER |
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