KA幻变(视觉三变,又称KA白) 

一款四张牌变化2次的效果。首先背面展示四张牌。这时观众还不知是什么牌。接下来把牌竖着重叠起来，展示是四张K。手上不需要任何遮挡，四张K全部瞬间变A，然后把牌翻过来，在展示，全部变色白牌，给人很意外的感觉。其中三张牌还可以交给观众检查。

产品包括三张白牌+一张道具牌+中文视频教学

视频演示：

https://cloud.video.taobao.com//play/u/1078603494/p/1/e/6/t/1/279509861523.mp4

Four King to Ace

The magician shows four cards and stacks them vertically. There are four kings. In the blink of an eye, they change to four Aces. Turned over and shown again, all of them become white cards. And the three white cards can be checked by audience.

Comes with the prop and video instruction.

Demo:

https://youtu.be/_pdtHpgYLow