Due to systems upgrades, all orders placed Thursday, July 25, 12:00 AM EDT through Sunday, July 28, 11:59 PM EDT will require an additional 3-5 business days for delivery. We apologize for any inconvenience this may cause.
Priority Mail® Forever Prepaid Flat Rate Side-Loading Medium Box
Enter Return Address
Before you can add this into your cart, you must enter the return address that you would like printed on the envelopes.
Return address must be a valid U.S. address. Please enter a valid U.S. return address below.
*indicates required field Please enter a First Name and Last Name and /or a Company Name
All in-stock orders ship with USPS Tracking®. Please allow 5-7 business days for in-stock items to be shipped.
Free shipping supplies mailed via USPS Ground Advantage™ and ship within 2-5 business days.
If your local Post Office® is unable to fulfill your order of expedited shipping supplies within 1-2 business days, your order will be fulfilled by our distribution center within 3-5 business days.
All in-stock orders ship with USPS Tracking®. Please allow 5-7 business days for in-stock items to be shipped.
Free shipping supplies mailed via USPS Ground Advantage™ and ship within 2-5 business days.
If your local Post Office® is unable to fulfill your order of expedited shipping supplies within 1-2 business days, your order will be fulfilled by our distribution center within 3-5 business days.
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