Soft gum stimulators. Anti-microbial bristle protection (Helps keep bristles cleaner between brushing). The brand more dentists use themselves worldwide. Why is it right for you? Oral-B CrossAction Vitalizer Plus with antimicrobial bristle protection inhibits microbial growth that may affect the bristles for up to 60 days. The bristles do not kill bacteria in the mouth or protect you against disease. Always clean this product thoroughly after each use. What else does CrossAction Vitalizer Plus offer? Soft Gum Stimulators: Soft gum stimulators massage gums. CrissCross Bristles: Unique CrissCross bristles are angled in opposing directions to lift out and sweep away plaque. Power Tip bristles: Extra long bristles help clean hard to reach places. Indicator bristles: Blue Indicator bristles fade halfway so you know when to replace your brush. Made in USA.