For items weighing 4 lbs or less, which mail type is suitable for international shipping?

First-Class Package International Service is specifically designed for lightweight packages and is suitable for items weighing 4 lbs or less when being shipped internationally. This mail type offers an economical option for sending smaller parcels to various countries, with tracking services available for certain destinations.

The nuances of international shipping can be complex, but First-Class Package International Service provides an essential balance of cost and service. It allows shippers to send items with a maximum weight of 4 lbs affordably while ensuring they can reach recipients in different countries.

The other options, such as Media Mail, are not applicable for international shipping, as they are restricted to domestic shipments only. Priority Mail International can be used for heavier items but is not limited to items under 4 lbs, which makes it less tailored for this specific weight category. Lastly, Registered Mail primarily serves as a security feature for high-value items and can only be used as an additional service on certain mail classes, but it isn’t a standalone mail class like the First-Class Package International Service.