UV Invisible Ink Pen
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This is a very interesting pen. It writes like a normal felt tip pen but the ink is invisible.
However the top of the pen houses a miniature UV LED torch. Turning the torch on and
shining it on the paper during the day just shows the writing but in a dark room the
torch turns the invisible ink into a vivid colour. Could be used as a security marker or
just for fun.
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(click on the images above to view movie)
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We ship worldwide
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Ideal for ages 7+ (suggestion).
To compare by age group
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