We do not offer a 'free shipping' option, and the postage rates are based on the package weight/dimensions and destination. The rates are determined by the postal carriers and are beyond our control.
If you are based outside the USA, you may have to pay customs duties/taxes when the shipment arrives in your country. We're unable to predict or control if/when duties are applied to a shipment, as customs can vary from country to country.
If duties are required before the customs office can release your shipment for delivery, they will contact you. Do note, if the duties are unpaid the shipment will be returned to us. In this case, we can ship the order out to you once it arrives back with us however we'll have to collect postage on the new shipment first.
If you have any questions, please feel free to contact us!