flat rate envelopes

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1 Flat Rate envelopes and boxes are available.
2 Flat Rate envelopes and boxes (various sizes) are available free from the Postal Store.
3 Tracking, tracing, insurance, or inquiries are not provided as part of the service for First Class Mail International, Priority Mail International Flat Rate Envelopes and Priority Mail International Small Flat Rate priced boxes and foreign posts are not required to capture the scans.
4 Priority Mail Express International Flat Rate Boxes have a maximum weight limit of 20 lbs; the Flat Rate Envelopes have a maximum weight of 4 lbs.
5 Weight restrictions for Priority Mail International are 4 lbs for the Flat Rate Envelopes , Small Flat Rate Box, DVD, and Large Video Box; 20 lbs for the Medium and Large Flat Rate Boxes.
6 The international mailing classes with a tracking ability are Express, Express Guaranteed, and Priority (except that tracking is not available for Priority Mail International Flat Rate Envelopes or Priority Mail International Small Flat Rate Boxes).
7 to answer Kat Ondrova: USPS priority flat rates can only be used with the USPS flat rate envelopes & boxes. if you use your own packaging Priority rates are calculated by weight, shape and distance.
8 Please keep in mind that First-Class Mail International/Priority Mail International Flat Rate Envelopes and Small Flat Rate Boxes offer an affordable mailing option, based on negotiated terms with over 190 countries.