Fisher-Price GROW-WITH-ME 79711 Owner's Manual page 11

All About 5-Point Harness Mode
(20-40 lbs.)
Tether Strap: An additional belt anchoring car seat directly to your vehicle's
frame, reducing forward motion in an accident and significantly reducing the
potential for injury.
"Wing" Cushion: Provides extra support for your child.
Chest Clip: Keeps harness shoulder belts in place to properly secure your child.
Five-Point Harness: This up-front harness adjuster is easily accessible, with
five anchorage points to safely restrain your child in the car seat. Harness is
used all the way up to 40 lbs.
5-Point Harness Mode
9
20-40 lbs.