The pilot's suitcase, also known as the flight box, is one of the necessary flight supplies for flight attendants to perform flight tasks, which is basically equivalent to the backpack carried by students at school. Luggage is specially customized by the airline. The luggage of every airline is different. The nature of a pilot's job is different from that of ordinary people. He often shuttles between cities, sometimes it takes several days to perform aviation tasks, which requires a very durable suitcase.
Early suitcases were made of wood or other heavy materials. With the popularity of air travel, the material of luggage tends to be lighter hard plastic or cloth. Most models are also equipped with a built-in small wheel, which can be easily pulled with a pull rod. In recent years, four-wheeled luggage has also appeared, which can not only rotate 360 degrees, but also be easily pushed on the flat ground.