Finger ring has two ring rails having equal internal diameter, and pin for connecting ring rails, such that ring rails rotate with respect to one another

摘要

The finger ring has two ring rails (1,2) having equal internal diameter, and pin (3) for connecting the ring rails, such that the ring rails rotate with respect to one another. A mandrel (4) in which perforated elements are inserted is attached to the ring rail, and a bulged portion (5) is formed in the ring rail.