Card tricks with box

For this focus, a small flat box with a length of 10 centimeters and a width of 7.5 centimeters is used. Height not more than three centimeters. Inside this box should be placed a regular card. The bottom of the box and the lid are exactly the same and connected by loops. Each of the half boxes must be free to cover it. If you take this box with a double front side, then on one side there can be, for example, a lady of clubs, and on the other side there can be a lady's peak. Of course, spectators do not know about this. Take a card, put it on one side of the box, close the box. Then turn it over and open it on the other side and the card disappears. The secret of this box is that it has a board made of the same wood as the inside of the box. The thickness of the board should be larger than the card, and the dimensions should be such that the plate is snug against each half of the box. If you put this board in a box and open it, the board will form the bottom of the box.
Thus, with the help of this box, you can show a lot of tricks. For example, one more. Take the card and tear it in front of the audience, put the torn card in the box, then in the process of communicating with the audience turn the box and open it, the audience will be surprised, because from the box you get the whole card. Of course, the whole card lay in this box in advance, and now it contains a torn card.