Reversible, mesh fabric supports airflow • Machine washable • For use from birth until baby no longer prefers it • Compatible with MamaRoo Multi-Motion Baby Swing (all models), RockaRoo Baby Rocker, and Connect High Chair Cradles your new baby with added comfort and support, while the lightweight and breathable mesh fabric keeps baby cool and comfortable. Use with all 4moms baby swings, rockers, and bouncers to safely position and hold newborns. You can also use your newborn insert with your Connect High Chair® to keep baby comfortable during mealtime moments.