When offering shipping services, the seller specifies the type of shipping (which determines which tags are used and affects how costs are established for shipping of the item). Available options for Item.ShippingDetails.ShippingType are:
FlatCalculatedFreightandFreightFlatCalculatedDomesticFlatInternationalFlatDomesticCalculatedInternational
Note: The CalculatedDomesticFlatInternational and FlatDomesticCalculatedInternational types can be used to specify separate shipping types for the domestic and international legs of a traditional international shipment.
Certain limitations apply to using shipping types with both eBay International Shipping and the Global Shipping Program. For additional information, refer to: