us mail one price boxes

us mail one price boxes refers to USPS’s flat-rate boxes that allow customers to ship items for a set price regardless of weight (up to a certain limit) or destination, as long as the contents fit inside the box. These boxes are available for both domestic and international shipping, making it easier for businesses and individuals to predict shipping costs. USPS offers several sizes of flat-rate boxes, with rates that vary depending on the service selected.