The Oral-B Pro Cross Action Black Brush Heads are engineered for a superior clean, targeting hard-to-reach areas of the mouth. Featuring uniquely designed bristles that oscillate, rotate, and pulsate, these replacement heads effectively break up and sweep away up to 100% more plaque than a regular manual toothbrush. They are ideal for daily use to promote gum health and achieve a thorough clean with every brushing session.