Mikame Craft has made a Classic Ring Transfer Effect
using an Unconventional yet Beautiful DUAL Box.

Borrow a spectator's ring and place it inside a silk hanky.
Another spectator is asked to hold the ring through the silk hanky.
You pull the hanky away and the ring completely VANISHES!
The two ring boxes have been in plain view the entire time.
Remove the inner box and turn it around showing everyone.
Open the locked door and take out the glass inside the inner box.
Point at the silk inside the glass and pull it out slowly.
The ring is left inside.  Hand it back to the spectator unharmed.