Portrait WOW by Katsuya Masuda and Roman Garcia
Drawings drawn by you and a participant are exchanged and stored in a sleeve that allows the inside to be seen through. Slowly shaking your drawing, it gradually changes to the participant's drawing! Looking at the sleeve that the participant had, it has turned into the illustration drawn by the magician! Visual magic at it's best!
PORTRAIT WOW system x 1 set
The explanation is an online video.