Perfect for writing down secret spy messages, scrawling secret grocery lists, or keeping a catalogue of all of your Internet passwords. This pen can also be used to mark your valuables with your name and phone number. If the marked items were ever stolen police could easily detect, identify, and return them. Battery included.
When your secret messages, codes, diagrams, etc. are written with this pen they will be invisible to the naked eye. The message can only be seen by shinning an ultraviolet light on the seemingly blank sheet of paper.
Each 5″ aluminium spy pen features ink that is made of special high-brightness compounds that are invisible to the naked eye, but magically illuminate when exposed to ultraviolet light. A UV light is conveniently located on the opposite end of the pen, allowing you to read any messages left to you by your spy friends.
Does not come with refills.
Pens come in polished aluminium(different from picture)