MAGIC SHOP - Daytona Magic, Inc.

There are three rooms inside of a case, a spectator screws three metal nuts and bolts into the case. The spectator’s own ring is locked into one room by a metal bolt. Despite this, the ring instantaneously jumps into the middle room, when briefly covered with a handkerchief! Requires no practice! Even after examining props, spectator can not figure out secret!

English instructions.