The unique design comfortably cradles infant’s head. The Noggin Nest is easy to install and works with both 3- and 5-point harness systems so baby can enjoy support in many seats. Made with a soft cotton blend. Machine washable. Recommended age 0+ months. Boppy Noggin Nests are for awake-time support in strollers, bouncers, and swings. UNIQUE CUT-OUT DESIGN: The Boppy Noggin Nest Head Support has a unique cut-out design keeps your baby's head gently cradled. MULTI-FUNCTION: Works with a 3- and 5-point harness systems and is simple to install in any stroller, bouncer, or swing. Remove existing padded infant inserts before use. The head support should only be used in the recline position for infants EASY CARE, MACHINE WASHABLE: The head support is machine washable for easy care because little messes happen. Do not use in crib, cradle, bassinet, playpen, play yard or bed 0—4 MONTHS: Recommended use for babies 0 to 4 months old