Make a compact and functional addition to your oral hygiene routine with the Oral-B Cross Action Black X-Filaments Replacement Head 2 Pack. These toothbrush heads feature more than 2200 perfectly angled bristles to remove up to 100% more bacterial plaque for cleaner teeth and healthier gums compared to a manual toothbrush. These genuine brush heads are designed with unique 16° angled bristles and X-shape bristles that clean in areas that round ones cannot reach. Its brush head usage indicator turns bristles from green to yellow showing you when to change for 100% cleaning efficacy. It ensures a guaranteed fit with Oral-B electric rechargeable toothbrushes except Pulsonic and iO toothbrushes.