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4/15/2006 Staff wrote:A little cool toy which hides and shows secret messages. It's cool to have when you want to write something which people don't see.
Pros: It's a cool pen you can use to mark stuff and write secret messages. Nice strong UV light! 500 characters is a bit too much don't you think so?
Cons: After a little while it will get boring and you wont use it so much any more. I wont use it to cheat because teachers will see the UV. (OK you can try it but I warned you! ;] )
Other Thoughts: My dog ate a part, but it's still working =).After a week my UV is still working. 500 characters is a bit too much don't you think so?
Bottomline: A nice cheap pen you have to own! Buy it! Just... Do it.
Pros: - The kids love it !- Ink really invisible, and really glows under UV rays!= Really nice result.
Cons: - UV diode cannot be used as a money detector, because of the too high wavelength (> 400nm).- I cannot really think of other cons!- I cannot really think of other cons!- I cannot really think of other cons!- I cannot really think of other cons!- I cannot really think of other cons!- I cannot really think of other cons!
Other Thoughts: You can use it on other surfaces than paper, like a marker in order to prevent thief..!
Bottomline: Buy it, ultra cheap, you won't regret it!
Pros: I ordered this to check how buying from dealextreme works :) I chose it cause it seemed fun, and was also cheap, and it really turned to be fun :) You can mark some things and papers, so others don't know:) Friends of mine liked it very much also, so soon I'll buy 10 more maybe
Cons: Working properly, or being really invisible depends on the paper you are writing on, on some paper you cal still see it as really light green, but it's not really pen's or ink problem, just choose the paper better.Other thing is the colour, maybe they can make it in different colours, not just purple :)
Other Thoughts:
Bottomline: As I said before, I really enjoy it, so do friends of mine, that's why soon I'll order more. You can buy this kind of pen here also but for at least 2 times bigger price, so price is really good too, especially if you get few of them, not just one.
Power: 3 Lithium Batteries (AG-10) (Included)Length: 5.12 "Height: 0.79 "Width: 0.79 "Weight: 0.41 ozLength: 13.0 cmHeight: 2.0 cmWidth: 2.0 cmWeight: 11.7 gram
Write your message using the invisible ink pen and shine using the built-in flashlight over the message to view.
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