The Oral-B iO Gentle Care Replacement Brush Heads are designed with high density, extra soft bristles for a gentle and comfortable clean. They have optimized bristle patterns that adapt to the curves of your teeth and gums. These brush heads are compatible with Oral-B iO Electric Toothbrush Handles and dentists recommend changing them every 3 months for best results. Each pack includes 2 brush heads. (This content is generated by AI)