This is Jet no. JWL1442-161.  This is the variable speed pulley set for the arbor spindle on the JWL1442 lathe.  These are only sold as sets. The hub  ID is 24mm and the OD is 30mm.  The overall OD is 5.2" or 132.5mm.  The bore should be a slip fit so the pulley can slide on the shaft.   Shipping on this item is free via USPS or UPS.  I do ship internationally, just email me your location and I will quote shipping to your country.