The Oral-B Complete 5-Way Clean toothbrush has 5 cleaning zones and a 2.5X deeper reach. Each cleaning zone provides a distinct cleaning benefit including hard to reach areas, in-between teeth, whitening, along the gumline, and on the tongue and cheek. The toothbrush gives users a comfortable whole mouth clean experience and is easy and effortless to use. Direction for use : Brush your teeth at least twice a day. Not intended for children 3 years and under. Replace brush every 3 months