Kids Outfit Sets Size 9M : for 6-9 months baby , fit for 66-73cm height,size 12M : for 9-12 months baby, fit for 73-80cm height,size 18M : for 12-18 months baby,fit for 80-85cm height,size 24M: for 18-24 months baby,fit for 85-90cm height,size 3T : for 2- 3 years baby,fit for 90-100cm height,size 4T : for 3-4 years baby,fit for 100-110cm height,size 5T : for 4-5 years baby,fit for 110-120cm height,(You can choose the size what you want)Ts:1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the tures. Thank you2. Please allow 1-3cm measuring deviation due to manual measurement.3. If your baby is stronger orter, it is recommended that you choose a larger