Graco AFFIX Manual Del Usuario página 11

Without back support
(approximately 4 to 10 years old) :
(mass between 18 and 45 kg), and
(101 and 145 cm) in height, and
and the lap portion is positioned
low on the childs hips, and
below the top of the vehicle
seat cushion / head rest.
Your Graco booster seat can be
used with or without the back
support (on certain models) as
long as the above requirements are met.
MUST
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2