Inom TurdikulovParcel post
Parcel post is a postal service for mail that is too heavy for normal letter post. It is usually slower than letter post. The development of the parcel post is closely connected with the development of the railway network which enabled parcels to be carried in bulk, to a regular schedule and at economic prices. Today, many parcels also travel by road and international shipments may travel by sea or airmail.
— Wikipedia
I use it very often in my life.