PVD Black 316L Surgical Steel ball closure ring (BCR) available in sizes 6mm, 8mm, 10mm and 12mm internal diameter. 1.2mm wire is available in 6mm, 8mm and 10mm and has a 4mm ball. 1.6mm wire is available in 10mm with a 4mm ball and in 12mm with a 5mm ball. The ball has dimples either side of the ball which is held in place by the tension of the ring. Suitable for an initial piercing.
