Borrow any ring, from a thin engagement band to a thick, signet ring.
The ring is placed under a handkerchief.
The spectator holds their own ring through the hank.
They feel their ring in the hank until the last second when you whisk the handkerchief away and THEIR RING IS GONE!
The ring can appear anywhere you wish.

Full instructions and props.

This appears to be NEW, never opened nor used.