Rattles & teethers are essential to growing babies. Rattles allow baby to begin using their hand-eye coordination skills. They are often one of the first toys babies play with. Teethers are used throughout the various stages of baby and toddler teething. Teething can be painful for little ones so having something soft for them to chew on often can help. Make sure your baby has the best with brands like Baby Aspen and Melissa & Doug.