Dr. Brown's Flexees Ergonomic Teether is designed by a pediatric dentist to safely ease pain during teething. It is also ideal for biting and chewing and aiding in proper jaw development. Additionally, its texture combinations help stimulate gums and mouth. This pink baby teether is durable, flexible, easy to grasp and use by tiny hands and capable of reaching all areas of the mouth. It is best for little ones ages 3 months and older. You can safely store it in your freezer.