Oral-B's iO Gentle Care brush head is specially designed for a gentle and effective cleaning of sensitive areas and gums • Gentle Care adapts precisely to teeth and gum edge for a gentle and effective cleaning • For a gentle and effective cleaning of sensitive areas and gums • On Oral-B's signature round brush head, the bristles are carefully positioned to envelop each tooth for the best possible cleaning< br /> • Exclusively designed for and guaranteed to fit your Oral-B iO • From the brand most dentists recommend worldwide