This is a A-CL80S Connecting Link, 80 w/ Shepherd Hook Attachment (Drives) PN: CL80SMain Description As Following : A-CL80S Connecting Link, 80 W/ Sheperd Hook Attachment P.N: CL80S Timken Drives chainHook Style 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 : Timken Drives chain Hook Style