what does first class mail mean

what does first class mail mean refers to a type of postal service that offers quicker delivery than standard options for letters, cards, and lightweight parcels. In the U.S., USPS First-Class Mail generally arrives within 1–5 business days, making it ideal for small items. It includes basic tracking when shipping packages, though not for regular letters. This service is cost-effective and widely used for e-commerce orders under one pound. Businesses and individuals favor it for its balance of speed and affordability. Understanding size and weight limits ensures eligibility for this category of mail.