| US / UK | WEIGHT | LENGTH |
|---|---|---|
| Up to 5lbs | Up to 5lbs Up to 2.3kg | Up to 17.00" Up to 43cm |
| Up to 7lbs | Up to 7lbs 2.3 - 3.2kg | Up to 18" Up to 46cm |
| 0-3m | 7 - 12lbs 3 - 5.4kg | 18.00" - 22.75" 46cm - 58cm |
| 3-6m | 12 - 16lbs 5.4 - 7.3kg | 22.75" - 26.75" 58cm - 68cm |
| 6-9m | 16 - 21lbs 7.3 - 9.5kg | 26.75" - 28.00" 68cm - 71cm |
| 6-12m | 17 - 25lbs 7.7 - 11.3kg | 26.75" - 29.25" 68cm - 74cm |
| 9-12m | 21 - 25lbs 9.5 - 11.3kg | 28.00" - 29.25" 71cm - 74cm |
| 12-18m | 25 - 27lbs 11.3 - 12.2kg | 29.25" - 31.00" 74cm - 79cm |
| 18-24m | 27 - 30lbs 12.2 - 13.6kg | 31.00" - 33.00" 79cm - 84cm |