usps medium box flat rate price

usps medium box flat rate price is a fixed-rate pricing option offered by the United States Postal Service for shipping with a medium-sized box. The price of this service remains consistent regardless of the weight of the package, as long as it fits within the size restrictions. It is ideal for shipping medium-sized items, such as clothing, books, or small electronics, at an affordable cost. USPS Medium Flat Rate Boxes include tracking and delivery confirmation, making them a popular choice for e-commerce sellers.