new spy gadget - invisible ink pen
the ink can only be seen if you use ultraviolet light. Perfect for secret notes.
one example of its use. Write a seemingly innocent letter but at the back, you can write top secret notes.
This allows you to send secret notes to fellow spies
There are plenty of other uses for this. Pero secret na yun
P250each 5pcs available on hand but more can be ordered if there is a need to
