In the logistics industry, expansion boxes are widely used for cargo transportation. Its sturdy shell and adjustable internal structure can effectively protect the integrity of goods, reduce damage rates during transportation, and improve transportation efficiency.Expansion boxes also play an important role in family life. It can be used as a storage box to help families organize their belongings and maintain a clean and orderly indoor environment. At the same time, the expansion box can also be used as a children’s toy box to store children’s toys in an orderly manner, reducing household clutter.