This Gold Vermeil Flower Safety Chain Bead is compatible with a screw core and hides the threads on either end of the bracelet, functioning as a secondary, decorative locking mechanism. This gold vermeil stopper bead is functions as a stylish bead, bringing extra style to your bracelet, as well as enabling you to modify your story bracelet by adding or rearranging beads and locking them into places. Made of .925 sterling silver and coated with 14 karat gold, both beads have lovely spring flowers etched into them and are then connected by a funky gold chain. Compatible with Pandora Charm Bracelets.