Electronic Wallet Card Exchanger by China Magic

This device is specially designed to facilitate the swap/exchange of playing cards.

You can replace a useless card with a much better one, without being detected by others.  The device is small and is hidden in an elegant man purse.

Using it is easy: you insert the useless cards inside the specially designed pocket and the better hidden card will be provided instantly.

The purse is functional, the device is not in sight and it can also be used to store documents, money, photos, keys.

Comes with a wallet, a usb cable and instructional video.

DEMO: https://youtu.be/uoQjVDyOYyo