usps mail first class

usps mail first class is one of the most affordable mailing options offered by the United States Postal Service. First-Class Mail is suitable for sending lightweight items, such as letters, postcards, and small parcels, both domestically and internationally. Delivery times for First-Class Mail within the United States typically range from 1 to 3 business days, depending on the origin and destination. First-Class Mail offers tracking and the option to purchase additional services, such as insurance or delivery confirmation.