http://muabalochonggu.idea.informer.com/
At the chronilogical age of 1st grade, their skeletal system is in the developing stage, therefore if they wear heavy school bags, their spines will probably be bent easily, when they wear them for a long time, they'll be hunched. Therefore, choosing an anti-humpback backpack for the children is extremely necessary. Parents usually do not underestimate hunchback disease in children! Humpback disease is typical within the elderly because of degenerative rheumatoid arthritis. However, hunchback disease is additionally common in small children. Kid