Domestic Parcels (Yū- pack)
If the sum of the length, width and breadth of a parcel is less than 170 cm, and weighs less than 30kg, it can be posted as a small parcel (called yū–pack). These can be sent from post offices and certain convenience stores. Postage charges depend on the object’s size and destination.
Parcels can be sent internationally via sea mail or airmail. Consult your post office for details about cost, maximum size, and area of coverage.
Delivery Service (Takuhaibin)
Private courier companies offer a parcel delivery service known as takuhaibin or takkyūbin. Many supermarkets, convenience stores and other shops act as agents. Services provided vary among companies, however many offer services such as specifying the delivery date and time, night delivery and/or refrigerated transport.
It is also possible to have your suitcases delivered to and from the airport when traveling.