Magic cards switcher coat for poker game

This is a playing cards switcher that installed in chest place of a coat. The Cards Switcher is a diabolically clever, and simple, method for switching one card for another. Its size is little bigger than poker size playing cards; only has space for three cards. And inside this cards switcher, it is double pulley to make the switching speed more quickly. The power source is dry cell; it easy to replace its battery.

It's a miraculous ultimate utility prop.