The Service is only available for machineable letters and postcards addressed to international destinations. The service allows Customers to design and produce their own personalised international stamps for retail sale in the UK for delivery outside of the UK. All international stamp designs must be pre-approved by Royal Mail. Mailing items bearing these international stamps can be posted into Royal Mail post boxes before being extracted at Royal Mail outward mail centres and handed over to the Access Customer. The Access Customer is responsible for the onward international conveyance of the items. Maximum item weight is 20g. Price details can be found by visiting the pricing link at the top of this page. Please refer to the Mail Centre Extraction Agreement and User Guide for more detail.