What is one of the features of Priority Mail flat rate boxes?

One of the standout features of Priority Mail flat rate boxes is the principle of "If it fits, it ships." This means that customers can place any items inside the flat rate box, regardless of their weight (up to the specified limit for the box), as long as the items fit within the dimensions of the box. This allows for a straightforward and predictable shipping cost, regardless of the weight of the contents, making it an attractive option for those looking to send heavier items without worrying about varying shipping costs based on weight.

This feature simplifies the shipping process, as customers can easily calculate and understand their shipping expenses ahead of time. Additionally, it encourages the use of the flat rate box for shipping a wide variety of items, making it a preferred choice for many individuals and businesses. Following this principle, customers can maximize the use of the box space without concern about the cost fluctuating with weight, hence promoting convenience and value in shipping.