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| Size | Height | Weight |
|---|---|---|
| Keyfit 30 Magic Infant | 0 to 30 in. | 4 to 30 lbs. |
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| Keyfit 30 Zip Infant | 0 to 30 in. | 4 to 30 lbs. |
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| Keyfit 30 Infant | 0 to 30 in. | 4 to 30 lbs. |
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| Nextfit Zip Convertible | 0 to 49 in. | 5 to 65 lbs. |
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| Nextfit Convertible | 0 to 49 in. | 5 to 40 lbs. |
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| Kidfit Zip 2-in-1 Belt Positioning | 38 to 57 in. | 30 to 110 lbs. |
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| Kidfit 2-in-1 Belt Positioning | 38 to 57 in. | 30 to 110 lbs. |
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