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BNI-ENVELOPEX

Envelope X-Ray Spray - Envelope Viewing Spray

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Envelope X-Ray Spray - Envelope Viewing Spray

Our secret envelope spray turns opaque paper temporarily translucent, facilitating discrete visual inspection of an envelope's contents without opening it!

In about 30-60 seconds after application, the envelope returns to its original condition, leaving no markings or discoloration.   

Envelope Spray Features:

  • Quickly assess an envelope's contents without opening it
  • Makes a great science experiment
  • Made in the USA

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