USPS Priority Mail Express Flat Rate Envelope 12 1/2" x 9 1/2"

This is a flat rate envelope for Express Mail, USPS's fastest service for time-sensitive letters, documents and merchandise. Guaranteed next-day and second-day delivery nationwide or your money back. This paperboard envelope is designed to accommodate legal sized documents. It is ideal for sending letters and other large documents via Express Mail.

Size: 12 1/2" x 9 1/2"

Limit of 3 per order per customer. Must be used for Express Mail Only.