This 50 mm large brooch / needle cabochon base allows to wear your glass topper with
your coat, jacket or scarf for example.
Cabochon base with a 4mm high metric threading 2.5mm.
Inclusive one protection rubber disc to put between your bead and the disc base and 2 rubber o-rings.
Made of brass, covered with a thick layer of pure silver (5-6 micron).
Compatible with all existing rings and components with 2.5mm metric threading.