The containers are made from aluminum alloys. These materials provide both strength to protect goods from impact and lightness to facilitate their transport.

These goods transport boxes come in all sizes: the smallest are around 1.5 meters long, they are often positioned in the cargo holds of light cargo aircraft, the largest are up to 16 meters long, and are carried on the largest freighters.

Each container is designed to carry a certain type of freight. They can be insulated, refrigerant, stabilizing or even secure.