Can you imagine? You just need to very clearly put the coin in the audience's hand. Let him close his hand, then open. The coin changes color. You don't need to do anything. Then the audience can immediately check. This is C-COIN by Zhao Xinyi.
Of course with two normal coins you can do a lot of effects (exchange, prediction, which hand, and more...) it just depends on your imagination.
Please be aware that due to your computer monitor display the color may have some difference between the picture and the physical item
Please according to you to buy the dress fabric, select the corresponding fabric color chart
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