international priority mail flat rate envelope

international priority mail flat rate envelope is a shipping option offered by USPS that allows customers to send international mail at a fixed cost regardless of weight (up to a certain limit) and destination. This service is ideal for sending documents or smaller items overseas, as it provides fast delivery times and the convenience of a flat-rate pricing model. The USPS International Priority Mail Flat Rate Envelope typically offers delivery within 6 to 10 business days, depending on the destination. This service also includes tracking and limited insurance.