XS: 15-20cm (necklace length 15cm, extend the chain 5cm)


  S: 20-25cm (necklace length 20cm, chain extension 5cm)

M: 25-30cm (necklace length 25cm, extension chain 5cm)

L: 30-35cm (necklace length 30cm, extension chain 5cm)
Note: Baby must bring a necklace larger than the neck circumference.
Otherwise it may be completely trapped in the hair, can not see