A container is a meant for sea cargo or inland waterway transport, terrestrial transport and multimodal. They consist in sealed units that will protect the goods on the weather, and they are manufactured in accordance with ISO (International Standarization Organization), specifically, ISO-668, because of that they’re also known under the name of ISO containers. Containers can be used to carry bulky or heavy objects: engines, machinery, small vehicles, etc., or palletized goods. Less frequent are carrying cargo in bulk. The dimensions of the container are standardized so as to facilitate handling.

The containers are made mainly made of steel cut, however, there are also some other aluminum and plywood reinforced with fiberglass. In most cases, the floor is wooden, although there are some made of bamboo already. Inwardly they have a special anti-moisture coating to prevent moisture during the trip. Another defining characteristic of containers is the presence in each of its corners, lodgings for twistlocks, which allow them to be hooked by special cranes and held by lashes to both ships and trucks.
The first containerized transport happened on April 26th 1956. The man in charge was Malcom MacLean, who made the trip from New York to Houston