The RideSafer has been crash tested and certified for children as young as 3 yrs old and 30 pounds.
As CPS techs ourselves and as safety advocates we do recommend that, if a child has a 5-point harness, they continue to use it as their primary restraint and use the RideSafer for all those times when moving the car seat is not convenient or practical.
There are some parents, including us, who choose to use the RideSafer as their primary restraint starting at 3 years old. And for those situations we recommend that they use it with a tether strap, which offers the added support and protection of the tether when used in addition to the lap-shoulder belt.
Safe Ride 4 Kids
303 S Broadway #200-266
Denver, CO 80209