What is the Shtox glass?

This unique in its kind glass can rotate on the table.

At first sight the idea that a glass can rotate seems unbelievable and difficult for understanding.

But in fact this "phenomenon" is as simple and obvious as the existence of the wheel.

You just take a glass (empty, or with a drink), put it on the table, with a subtle motion of your hand give the glass a rotational movement and...

a miracle happens: the glass is spinning on the table in front of your admiring eyes.