Type A car can be used after the baby is 2 months old and the head can be supported; Type B car can be used after the baby is about 7 months old. No matter which style, it can be used until about 2 years old. The two types of cars have their own advantages. Type A is suitable for walking while Type B is suitable for taking trams or shopping.

This kind of car can lie down, like Type A car, but it is as easy to store as Type B. There are many flagstone roads in Europe, so the wheels of baby carriages are large and solid. In the United States, there are two baby strollers, three wheeled baby strollers, super light umbrella handle strollers, and some families have multiple baby strollers.