Priority Mail Flat Rate® Medium Box - 1

Priority Mail Medium Flat Rate Boxes are a quick and convenient way to send priority mail packages. Visit The Postal Store to buy medium boxes today.

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Priority Mail Flat Rate® Medium Box - 1

Priority Mail Medium Flat Rate Boxes, 25/pack – Stamps.com

This is a shipping charge for Priority Mail Flat Rate Box Medium., Sizes:, Inside Dimensions, Outside Dimensions, 11 x 8-1/2 x 5-1/2, 11-1/4

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