This is a A-67XH 67XH Steel Detachable Chain (10 ft) PN: 67XHMain Description As Following : A-67XH 67XH Steel Detachable Chain (10 ft) P.N: 67XH Dim A (1): 1-7/8Dim B (2): 1-3/32Dim C (3): 2-5/16 Crossed From: 2221-24021 JOHN DAY Found in Section & Models : Chains/ Sprockets/ Pulleys/ Hubs > Steel Detachable Chains, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : A-67XHASL, A-67XHASR Also This is An Aftermarket Product And : Dim A (1): 1-7/8 Dim B (2): 1-3/32 Dim C (3): 2-5/16