Have you ever been curious about the content of an envelope? You don’t always have to open envelopes to see what’s inside. The Envelope X-Ray Spray turns opaque paper temporarily translucent, so you can see what’s inside. I know what you are thinking here. But the Envelope X-Ray Spray won’t leave any markings, discoloration, or other indications of use. Just remember, with great power comes great responsibility.
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