A deck of cards (or a phone…) is put in a box. The box has a cut covered with a glass in front of it. The deck of cards is seen through the glass. The box is whirled opened and the deck is found to have vanished. The audience can see through and through the box without any trace of the deck of cards.
 
Very easy to do!
 
• The box misures cm 17 x 5,5 x 11,5 (in. 6,69 x 2,16 x 4,52).