Oral-B Pro Crossaction \ \ Replacement Electric Toothbrush Heads \ \ The Oral-B Pro Cross Action brush head features over 2,200 bristles at a perfect 16° angle that removes up to 100% more plaque for cleaner teeth & healthier gums compared to a manual toothbrush. Genuine Oral-B brush heads are designed with new X-shaped bristles that clean 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. \ \ \ removes up to 100% more 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 areas that regular bristles can't reach for a more effective clean \ oral-b pro cross action features unique 16° angled bristles for perfect fit to each tooth and 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 for 100% effective cleaning \ oral-b is the leading electric toothbrush brand used by dentists worldwide with clinically proven results \ \