The suitcase has a wealth of practical functions. Its primary function is storage, and the interior is designed with reasonable partitions, such as clothing straps to prevent wrinkles and small storage bags to facilitate the storage of small items. Through the combination of tie rod and wheels, it is easy to move, whether it is in a flat airport hall or a slightly bumpy road, it can be easily pushed or towed. Its material has a certain compression resistance, which can effectively protect the contents of the box from external force squeezing damage. Good waterproofness can cope with rain and snow during the journey and avoid getting wet. In addition, some suitcases come with TSA combination locks, which not only ensure the safety of luggage, but also facilitate the inspection of staff when passing through customs security, providing all-round convenience and protection for travel.