Shimano SM-CN910-12 Quick Link for CN-M9100 2 PackThe Shimano SM-CN910-12 Quick Link for CN-M9100 2 Pack is compatible with CN-M9100, CN-M8100 AND CN-M7100. But, not compatible with current HG-X11 chain. These easy connect, non-reusable links can be used with a, sold separately, quick assembly tool (TL-CN10). Set of 2 Pairs.689228882287