1. Pure manual measurement, please allow 1-3 cm error; 2. Due to the influence of shooting equipment, angle, light and other factors, if there is a slight color difference between the real object and the picture, it is a normal phenomenon and not a quality problem. Friends who mind do not buy; 3. Age is for reference only, after all, every baby is different. Please refer to the "Recommended Height" in the size chart to choose a size. For obese babies, it is recommended to choose one size larger.