Lightweight, soft and flexible bioflex ball closure ring (BCR) available in a choice of gauge sizes 1mm, 1.2mm and 1.6mm. The ball features a small stem on either side which pushes into a hole at either end of the ring, ensuring that the ball remains firmly in place. To remove the ball, gently pull the two ends of the ring apart and the two stems on the ball will come out. To replace the ball, gently pull the two ends of the ring apart, position the two stems on either side of the ball into the ring ends and then push to fit. This bioflex ball closure ring (also known as a captive bead ring) is available in a choice of internal diameter sizes between 8mm and 16mm.