Product Principle:

The polarized light tube consists of a transparent PMMA tube with a vertical polarizing film attached to one inner side and a horizontal polarizing film attached to the other side. An opaque partition is visible in the middle of the tube. Rotating the tube up and down gives the illusion that the small ball inside is passing through a “wall.”

Gameplay Points:

By moving the polarized light tube up and down with your hand, you can observe the ball inside appearing to pass through an obstacle, as if passing through a wall, due to the effect of the polarized films.