These special envelopes (approx. 6.3 x 11 cm, ochre-colored) and the accompanying gimmick - imperceptible to the audience - are ideal for countless exchange and swap effects!

Such as:

• A borrowed banknote is placed in an envelope and kept by the spectator. Suddenly, the banknote is in your pocket, and inside the envelope is a "donation receipt"!
• The spectator puts a card with a circle symbol into an envelope, holds it to their forehead, and focuses on a square. If the spectator checks, the circle has been squared.
• A freely chosen card turns into a predicted one.

You will receive eight envelopes, the hidden gimmick, and very detailed instructions with many suggested uses and ideas for a variety of routines.