These rockin' maracas are just the right size for your baby's little hands to grasp and shake! With soft, fabric pom-poms and colorful beads that make fun rattle sounds, these maracas will get your little one rattling and rocking to the beat in no time! Where development comes into play Gross Motor: All that grasping and rattling gives your baby's gross motor skills a great workout! Sensory: The variety of colors, textures, and fun rattle sounds help stimulate your baby's developing senses.