whats priority mail express

whats priority mail express is a premium shipping service offered by USPS, designed for customers who need fast delivery. Priority Mail Express guarantees overnight delivery to most U.S. destinations, with a money-back guarantee if the package is not delivered on time. This service includes features such as tracking, insurance, and Saturday delivery. It’s ideal for urgent shipments, including legal documents, business correspondence, and other time-sensitive materials that require expedited service.