Melhor Invenção depois da Roda

Envelope X-ray Spray

Esta maravilhosa invenção a melhor depois da roda.
A alegria dos cuscos...digo espiões.


Envelope X-RAY Spray turns opaque paper temporarily translucent, allowing the user to view the contents of an envelope without ever opening. 30 seconds after application, the envelope will return to its' original state, leaving absolutely no markings, discoloration or other indications of use. Each can treats several hundred square inches.Non-conductive and non-photochemically reactive. Environmentally-friendly (contains no Freon). Net weight: 8 oz.

Pena é que não enviam para Portugal...!!!
http://www.spyworld.com/equipment/listings/l0062.html