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  A Customer's Guide to Mailing
   
  Introduction
  What Are You Mailing? Domestic
  What Are You Mailing? International
  Choosing a Service for Mailing
  Adding Extra Services
  Examples of Smart Choices
  Addressing Your Mail
  Preparing Packages
  Tips and Tools for Measuring Letters and Large Envelopes
  Tips and Tools for Measuring Packages
  Flat Rate Quick Reference
  Sending and Receiving Mail
  Other Products and Services
  Tips for Frequent Mailers and Small Businesses
     
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Tips and Tools for Measuring
   
 

Use these guides for measuring packages.

Image of package dimensions