The magician shows one large dice sealed inside a transparent container. With a quick shake, the large dice splits into several small dice in an instant. The container is opened and the small dice can be examined by the audience while the large dice vanish without a trace.
The body of the container is made of acrylic. High transparency and smooth surface.
The container measures 7.2cm tall and 5cm in diameter.
Demo:
https://youtu.be/BBR1WPWXEiQ