Oral-B Cross Action White \ \ Replacement Electric Toothbrush Heads \ \ Original Oral-B brush heads are designed with new X-shaped bristles that clean in areas that round bristles can't reach. \ The brush head usage indicator changes the bristles from green to yellow, reminding you when to change them to maintain 100% cleaning effectiveness. \ Guaranteed to fit all Oral-B rechargeable electric toothbrushes except Pulsonic & IO toothbrushes. \ \ \ easy delivery: 10 pieces, oral-b cross action black brush head in a mailbox-friendly package \ removes up to 100% more bacterial plaque for cleaner teeth and healthier gums compared to a regular manual toothbrush \ only genuine oral-b brush heads feature x-shaped bristles that clean in areas that regular ones can't reach for optimal cleaning efficiency \ oral-b cross action features unique 16° angled bristles for a perfect fit to each tooth for a deep clean \ guaranteed to fit all oral-b rechargeable toothbrushes except pulsonic & io toothbrushes \ brush head usage indicator: bristles change from green to yellow, reminding you when to change them to maintain 100% cleaning efficiency \ oral-b is the leading electric toothbrush brand used by dentists worldwide with clinically proven results \ \