High quality titanium ball closure ring (BCR) with a gauge of 1.6mm. The ball features two small indentations which enable it to be held in place by way of a tension grip. To remove the ball, pull the two ends of the ring apart and the ball will drop out. To replace the ball, pull the two ends of the ring apart, position the two dents on either side of the ball onto the ring ends and then release your hold on the ring. The two ends of the ring will squeeze together to hold the ball in place. This titanium ball closure ring (also known as a captive bead ring) is available in a choice of internal diameter sizes and colours.