Priority mail flat rate envelope 12 1/2 x 9 1/2

According to the USPS website, the Priority Mail Flat Rate Envelope size 12 1/2 x 9 1/2 inches is a popular choice for sending lightweight packages. Here are some key details about this envelope:

Size: 12 1/2 inches long x 9 1/2 inches wide

Weight Limit: 70 lbs (31.75 kg)

Cost: The cost of shipping a Priority Mail Flat Rate Envelope is a flat rate, regardless of the weight of the contents. The current cost is:

Delivery Time: Priority Mail Flat Rate Envelopes are typically delivered within 1-3 business days within the contiguous United States, and 3-7 business days to Alaska and Hawaii.

Additional Services: You can add additional services to your Priority Mail Flat Rate Envelope, such as:

Keep in mind that these prices and services are subject to change, so it's always a good idea to check the USPS website for the most up-to-date information.