Wormhole Envelope is a utility tool in card magic. It is mainly a visual signed card to envelope effect. The spectator selects a card, signs his name on the card, then the card is shuffled back into the deck. The magician takes out an empty envelope with a hole, suddenly the signed card appears inside the envelope.

We can also do color changing card, open prediction and many other effects with it.

Advantages:

• Can be done with any standard size playing cards.
• Instant reset.
• Easy to do. No difficult sleight of hand needed.