Bring Joy To Their Routine. These Oral-B Pro-Health Jr. Sensitive Clean replacement toothbrush heads are perfect for kids to get a healthy, thorough clean. While their smiles continue to grow and develop, there’s no better time to start healthy oral care habits.The special brush head design is suitable for the mouths of kids and provides an amazing tooth-by-tooth clean. Use these brush heads with the Oral-B Pro-Health Jr. rechargeable toothbrush to unlock the Disney Magic Timer App by Oral-B that revolutionizes the way children brush for a dentist-recommended 2 minutes.