noun
international parcel post
A Japan Post international mail service for packages weighing less than 30 kg.
国際小包で荷物を送るには、税関申告書が必要です。
To send a package by international parcel post, a customs declaration form is required.
この商品は国際小包で発送できますか？
Can this item be shipped by international parcel post?
国際郵便 is the broader term for international mail, while 国際小包 specifically refers to the parcel post service for packages under 30 kg.
Compound of 国際 (international) and 小包 (parcel), directly describing the service.