These Oral-B iO Series Gentle Care Replacement Brush Heads are engineered to deliver a superior clean while being incredibly gentle on gums. Featuring soft micro-vibrating bristles, they ensure thorough plaque removal adapted for sensitive areas. Designed for daily use, these brush heads integrate seamlessly with your iO toothbrush, providing a dentist-clean feeling every time you brush. Replace them regularly to maintain optimal performance and oral hygiene standards.