EFFECT 1: The magician shows a  5 Euro cents coin in one hand and a closed empty glass bottle in the other.  The coin is tapped against the bottle and instantly ends up inside it!
 
EFFECT 2: The magician opens a box of matches and from the drawer takes a 1 Euro coin. He closes the box and places the coin on top of it. ith just a wave of his hand, the coin penetrates the box and ends up inside it.
These are some of the possible effects with this great tool. You'll find them both explained in the instructions with a bonus third one.

This ring ha a diameter of 20mm.
The video demo shows the Magnetic ring effect but the actual ring supplied are the ones shown in the photo.