Colgate 360 degree surround sonic power is a technologically advanced powered toothbrush with superior cleaning efficacy. This toothbrush provides 20,000 strokes or min to remove more bacteria vs. A flat trim toothbrush. It is designed to remove bacteria in 3 ways for a healthier, whole mouth clean. The surround bristles clean both sides of the teeth and reach down to the gum line, the wraparound cleaner provides a new dimension of clean and the cheek and tongue cleaner comfortably remove odor causing bacteria.