These support cushions must be used from the baby’s first journey in the car seat. When to remove the support cushion will depend on the child and the type of car seat. We usually remove them when the child is between 3 and 6 months old, at which time they have reached the size needed to fit perfectly into the CRS without the need of the extra cushion. To find out the exact moment, we recommend following the manufacturer’s instructions, as their specifications may vary.