Instruction manual
Instructions for Installation & Use - Series No. 4900/A/2010
ADJUSTING BASE 
EXTENSION
ADJUSTING THE SIDE WINGS
HOW TO SETUP
This booster seat has a base extension which can 
be easily adjusted by rotating the knob. This is to 
accommodate the leg length of larger children.
When should the base be extended?
Extend the base so that the front edge of the 
base is close to the back of your child’s knees. 
The upper thigh section of their legs will be 
supported and the seating position is made more 
comfortable by reducing pressure points.
The Adjustable Side Wings provide more 
width for a Larger child or can be kept 
narrow to reduce the width of the Booster 
seat.
To adjust, hold seat or headrest with one 
hand and use the other hand to lift up 
side wing and rotate, let it click down 
into place, then do the same for the other 
side wing. 
When should the wings be 
adjusted?
When your childs arms and shoulders 
require more room within the seat, adjust the expandable side wings to the widest position 
to create more space for your child. Alternatively keep narrow if there are width restrictions 
in the car.
13
Rotate to lengthen base 
1. Lift
2. Push back










