The bristles of this classic toothbrush are infused with binchotan charcoal, a fine Japanese activated charcoal that naturally absorbs and neutralizes bacteria from teeth for a deep, natural clean. Binchotan charcoal helps to deodorize your mouth and keeps teeth looking fresh, while also preventing bacterial build up between brushings. This style features gentle soft bristles that are perfect for sensitive teeth. With powerful binchotan infused right in the bristles, the Morihata Binchotan Charcoal Toothbrush a great alternative to messy powdered charcoal toothpaste. Set includes three soft-bristle toothbrushes: one red style, one white style, and one black style.