Some products are never returnable for health reasons, among them teethers and pacifiers, breastfeeding supplies and feeding bottles, wet wipes, diapers and diaper rash creams, formula milk, baby food and supplements, as well as beauty and personal care items.
Other products become non-returnable once assembled, such as travel systems and strollers, ride-on toys and bikes, outdoor play equipment, and furniture for babies and children, so inspect and check the item before putting it together. Products bought under a buy-one-get-a-second-one deal must all be returned together.
Source: FirstCry: return policy