The trolley bag solves the burden caused by the heavy bag on the weak body of the child, and brings convenience to the child. Some of them are detachable, and can be used as a common bag or as a trolley bag to realize a dual-use, to a great extent. Created convenience for children. Moreover, the quality of the trolley bag is very good, not only has waterproof function, but also is not easy to be deformed, very durable and has a service life of 3-5 years.
Although the trolley bag can climb the stairs, it is not convenient for the child to drag the trolley bag up and down the stairs. Especially when the trolley bag is larger and heavier, it is prone to support or accident; the child is in the stage of growth and development, the bones are relatively tender, long-term one-handed Pulling the shoulder bag sideways, the spine is not evenly stressed, which may cause the spine to bend like a hunchback or a slump, and it is also easy to sprain the wrist.