1st class package service

1st class package service is a USPS option for shipping lightweight parcels up to 13 oz (or 15.99 oz via commercial pricing). It’s one of the most economical ways to send small items with delivery in 2–5 days. The service includes tracking and is widely used by e-commerce sellers for apparel, accessories, and electronics. Proper labeling, weight verification, and secure packaging ensure smooth transit and prevent surcharges.