The Mossad Pen, developed by Shomer-Tec, a specialist in law enforcement equipment, has released a pen whose ink can turn invisible. To make messages you've written transform to a secure, non-visible format, just place them under a hot lamp or blow dryer. To reveal your writing, expose your message to a cold environment, such as a freezer. According to Shomer-Tec, the Mossad Pen is a gel pen with a tip for smooth writing that makes no indentations in the paper. It works only on white paper. The pen point is 0.7mm, and the ink comes only in black.
The pen can be bought at the Shomer-Tec Web site and costs $28.00. And don't skip the noir-style art-schoolish video of the pen in superspy action!
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