4 zone bacteria removing action. Whole mouth clean. Removes bacteria from: teeth, tongue, cheeks, gums. Advanced multi-action bristle design (vs. an ordinary flat trim toothbrush). Innovative cheek & toque cleaner design. Dentists & hygienist recommended replacing your toothbrush every 3 months. www.colgate.com. Save water. www.colgate.com/savewater. Made in Switzerland.