Roentgen Envelope - One of the most discreet, practical, and simple mind-reading tools.

It all happens right in front of the audience's eyes-and yet, they notice nothing!

Customizable card refills are also available for different performance themes.

You hand out six cards with different symbols. With your back turned, the spectator freely selects one card, places it inside a small envelope, seals it, and hides the remaining cards.

You then place the sealed small envelope into a larger one and set it aside-untouched from that point forward. Even if completely surrounded, with no suspicious movement at all, you already know which card they chose.

The secret is done in under two seconds, right in front of your audience, without them ever suspecting a thing.

No forces. No fishing. No angle restrictions. And the best part?

Everything before and after the performance is fully examinable.

The Roentgen Envelope is crafted from high-quality, heavy-duty paper, with the envelopes featuring both horizontal and vertical construction for a fully sealed internal structure. The included gimmicked blank cards allow you to customize them with any information you desire.

Features:

• Instantly obtain secret information with zero angle limitations
• Natural and discreet process
• Fully customizable with your own symbols, words, or themes
• Made with durable, long-lasting materials

What's Included:

• 3 Envelopes (Black, Large Yellow, Small Yellow)
• 6 Gimmicked Blank Cards

Since the cards are specially made, and you'll likely want extras for different routines or themes, refills of the 6 gimmicked cards (without the envelopes) are also available separately.