|Inside Dimensions||Outside Dimensions|
|8-5/8" x 5-3/8" x 1-5/8"||8-11/16" x 5- 7/16" x 1-3/4"|
Priority Mail International is a reliable, cost-effective way to send documents and merchandise to over 190 countries.
Priority Mail International Small Flat Rate priced boxes, are a Letter-post service. The surface area of the address side of the item to be mailed must be large enough to contain completely the applicable customs form, postage, and any applicable markings, endorsements, and extra service labels.
When sealing a Priority Mail Flat Rate envelope or box, the container flaps must be able to close within the normal folds. Tape may be applied to the flaps and seams to reinforce the container; provided the design of the container is not enlarged by opening the sides and the container is not reconstructed in any way.