Pros: Realmente funciona, a caneta deixa invisível o que fora escrito no papel, e somente com a luz da caneta é possível ler.
Contra: Funciona melhor a noite, pois com a claridade, a luz que faz aparecer o que esta escrito não fica muito boa. Em geral é um excelente produto mesmo!
Pros: Producto sencillo y facil de usar, buen precio y siobre todo util. La lampara para verificar billetes es muy barata y accesible. La tinta es divertida y puede ser muy util. Pro el precio es muy buena compra.
Отличная ручка. Работаю исполнительным директором. Принимаю на должность людей - заставляю в трудовом договоре расписываться МОЕЙ фиолетовой ручкой. чирнила исчезают - люди работаю мне капают бабки а я им не плачу. Вот как то так . используйте ручку для правильных целей. спасибо
The pen is quite good, the quality is not the best but the price is worth it, it is very useful for secret messages with friends. I did not like the paint, because it ends up very fast. Its operation is efficient.
Pros: It writes on just about anything. It definitely can't be seen by normal light, but is easily seen when using the black light on the end of the pen. You can see the writing with the flashlight even in brightly lit rooms. Cons: Hard to see outside. Cheap plastic, could easily break. Other My...
Pros: It writes on just about anything. It definitely can't be seen by normal light, but is easily seen when using the black light on the end of the pen. You can see the writing with the flashlight even in brightly lit rooms. Cons: Hard to see outside. Cheap plastic, could easily break. Other Thoughts: My daughter uses one in her closet to write in the dark. When she was younger she got in trouble for writing on the walls, but in her defense you really can't see the writing unless you have a blacklight on it.
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