4 zone bacteria removing action. Removes bacteria from teeth, tongue, cheeks, gums, whole mouth clean. Advanced multi-action bristle design (vs. an ordinary flat trim toothbrush). Innovative cheek & tongue cleaner design. www.colgate.com/savewater. www.colgate360.com. Questions? 1-800-468-6502. www.colgate360.com. Save water. www.colgate.com/savewater. Made in Switzerland.