The Priority Mail Regional Rate Box® - A1 is a low-cost shipping alternative for commercial and online customers who are currently using Priority Mail® or Merchandise Return Service. With more than one size to choose from, the boxes combine the speed and convenience of Priority Mail® shipping with zone pricing to reduce costs. Regional Rate Boxes A and B are best used for small, dense packages being shipped short distances.
Please Note: This product ships in packs of 10 or 25. An order of 1 equals 10 or 25 boxes depending on your selection under Format.
Each Priority Mail and Priority Mail Express shipment includes USPS Tracking®.
For more information, please visit the Shipping Page.
SKUs featured on this page: RRB_A1, RRB_A1X
Outside Dimensions - measurements of the outside of the container
10-1/8"(L) x 7-1/8"(W) x 5"(H)
Inside Dimensions - measurements of the inside of the container
10"(L) x 7"(W) x 4-3/4"(H)
Girth - measurement of the distance around the container (i.e. the circumference)
Outer Dimensional Volume - measurements indicating the volume of the container in cubic inches
361.15 cubic inches
For more information, please visit the Priority Mail Page.
Note: When shipping packages, size and weight restrictions may apply and additional shipping rates may be required.
For the optimal postage and fees for your package deliveries, please access our new "How To Measure" video for tips on how to measure a package using Dimensional Weight and Cubic Volume.
The Postal Store® ships all in-stock orders with USPS Tracking™. Please allow 5 - 7 business days for in-stock items to be shipped.
To view your order status and tracking information, sign in to your USPS.com account, go to "Activity History", and select your Order#.
Orders from the Postal Store may be shipped from different distribution centers. If your order contains multiple items, they may be shipped separately.
The Postal Store® cannot accept orders for shipment outside the United States, but we do ship to APO/FPO/DPO addresses and U.S. territories. Learn More
Free Shipping Supplies
Free shipping supplies from The Postal Store Shipping Supply site are mailed Parcel Select® Ground and are shipped within 2 - 8 business days. For your convenience all orders will contain a carrier release endorsement "Leave if No Response". This will allow your postal carrier to leave your expedited packaging supply order if you are not available to receive the delivery.
Expedited Shipping Supplies
Orders of our Flat Rate Expedited Shipping Supplies are fulfilled by your local Post Office. If your local Post Office is unable to fulfill your order of Flat Rate Expedited Shipping Supplies within 1 - 2 business days, your order will be fulfilled by our distribution center within 2 - 8 business days.
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