Made from organic natural rubber, this little Dolphin from our Ocean Buddies Collection is easy for tiny hands to grip. nAnd when shaken, it responds with a Gentle sound that is sure to comfort your little ones.nEach marine animal character has an enclosed rattle that creates a soft sound when shaken. nSound toys, like rattles provide stimulation to babies as they discover their senses. nBy creating sound, your child starts to learn fundamental lessons in cause and effect relationships. nThese ocean buddies make a fantastic addition to bath time or water play, fully sealed for hygiene.