Britax Safe-n-sound BS8100A-020133 Series Instructions For Installation & Use page 16

SHOULDERHEIGHTMARKERS
ANDAGROWINGCHILD
OLDERCHILD
ASABOOSTERSEATwith
Lapsashseatbelt
To approximately 6 - 8 years of age.
Shoulders above middle marker but below upper shoulder height marker.
Marker C
Marker B
Front of Vehicle
16
Instructions for Installation & Use - Series No. BS8100A-020133
When your child's shoulders reach the upper shoulder height marker with the
headrest in the highest position, they have outgrown this child restraint.
Change to the next type of booster seat or child restraint.
A child harness must be used if the car's seating position is fitted with a lap only
seat belt. If a child no longer physically fits in the seat then move to the next form
of child restraint.
ASABOOSTERSEATwith
ChildHarnessandSeatbelt
To approximately 6 - 8 years of age.
Marker C
Marker B