ECE Group 0+: 0-13 KG (From Birth to 18 Month)

ECE Group I: 9-18 kg (from 9 Month to 4 years)

ECE Group I/II/III: 9-36 kg (approx. 9 month to 12 years)

ECE Group II/III: 15-36 kg (approx. 3 to 12 years)