8pcs in a pack Black PVD Captive Bead rings Multipack

8pcs in a pack. 18g 5/16", 7/16", 1/2" and 1/4" Black PVD Steel Captive Bead rings Multipack. Made from Surgical Steel.

Black PVD (Physical Vapor Deposition) involves a coating applied onto SS316L body jewelry. To create the black look, the jewelry is placed in a heated, high vacuum chamber, where electric voltage is applied. This process creates gases that produce ions, which are bonded to the jewelry. When the process is completed, the jewelry will have a hard layer that is both biocompatible and can be autoclaved. Black steel PVD should only be worn in fully healed piercings. The finish can come in either high polish or matte.