Water Teether HEART soothes pain during teething, when baby's gums are itchy and the need for chewing is strong. Made of soft, flexible material that adapts to child's mouth. A variety of shapes and colors stimulate baby's visual-motor coordination. The Teether is light and handy which facilitates holding in little hands. Deigned for children ages 0m+. Cool the teether in a refrigerator before offering it to the baby.