This is a A-CA555C CA555-C Connector Link PN: CA555CMain Description As Following : A-CA555C CA555-C Connector Link P.N: CA555C A-CA555C CA555-C Connector Link P.N: CA555C Crossed From: CA555CL , Found in Section & Models : Chains/ Sprockets/ Pulleys/ Hubs > Roller Chains and Attachment Links, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : New Also This is An Aftermarket Product And : High Quality Afternaket Shipped from Both US and Canada