Mail Check View Contents Of Envelopes

In the days where nothing can be taken as safe, it is nice to know now there is
a way of checking suspicious mail, without having to open it and with no
damage to the contents or the envelope.

All you have to do is to spray the envelope with MAIL CHECK and you will be
able to see the contents without opening it. After 2 mins the solvent will
evaporate and leave the envelope as if it has not been touched.