2 Due to the Large Individual Differences in Each Baby's Figure, Age, Height, weight and Other Parameters Are for Reference Only 3 the Normal Error Range Generated by Tiling Measurement Size Is 1-3cm 1 Please Choose According to the Actual Size of the Children D2 Because of Each Baby's Body Internal Differences, Age, height, Weight and Other Parameters for Reference Only3 Tile Measurement Size Generated by the Normal Error Range Is 1-3cm