How to choose the children bicycle size?

  It's getting warmer and warmer. The children gradually moved from playing with toys indoors to doing exercise outdoors. Children's bicycles become the first choice for children's outdoor exercise. But do you know how to choose the children bicycle size?
 
How to choose the children bicycle size?
Accroding to the tire diameter, the children bicycle has 12 inch, 14 inch , 16 inch , 18 inch and 20 inch.
  The height of the saddle and handlebar can be adjusted, so size of the bicycle choosing is mainly based on the comfort of children riding on the spot. Generally, 2 years old kids choose 12 inch, 3 years old kids choose 14 inch, 4 years old kids choose 16 inch, 5 years old choose 18 inch, and 6 years old choose 20 inch.
 
⑴ 12 inch: 2-4 years old kids, children height 85-105CM,
⑵ 14 inch: 2.5-4.5 years old kids, children height 90-120CM,
⑶ 16 inch: 3-5 years old kids, children height 105-135CM,
⑷ 18 inch: 4-7 years old kids, children height 110-145CM,
⑸ 20 inch: 6-10 years old kids, children height 125-150CM,
 
 The above data are for reference only and should be based on the comfort of the child's actual riding.