Beadhopper 22mm pendant cabochon base with 2.5mm threading.

This 22mm pendant cabochon base allows to wear your glass topper with lots of cords and chains up to a diameter of 4mm. With a 4mm high threading 2.5mm. Inclusive one protection rubber disc to put between your bead and the disc base and 2 rubber o-rings. NICKEL FREE 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.