This is a A-OL100IMP 100 Offset Link (Import) PN: OL100IMPMain Description As Following : A-OL100IMP 100 Offset Link (Import) P.N: OL100IMP A-OL100IMP 100 Offset Link (Import) P.N: OL100IMP Replaces: SWC100OL *** NO CLASS *** , Crossed From: WN-OL100IMP , , WN-OL1001MP , , WNOL100IMP , , WNOL1001MP , , 3016-100OL , , 673-HL100 , , 673HL100 , 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