Two 'brass' rings are examined by members of the audience and the magician then rubs them on his sleeve. When he touches the rings together, they stick together and the lower ring can even be spun! He drops the rings back into the spectator's hand and let him or her examine the rings and try to duplicate your feat. It will be impossible. A great pocket trick that is easy to do."
Repeatable and instant reset.
Chazpro Magic & Collectibles