The world's first silicone toothbrush, Foreo's electric ISSATM uses high-intensity pulsations to effectively remove stains without scraping away at enamel. Suitable for even the most sensitive teeth, it's fitted with an 8-speed interface that allows you to customize the frequency of pulsations and will improve the health and appearance of your gums. - Non-porous silicone resists bacteria build up - Bi-directional bristles clean between your teeth more efficiently - Integrated battery lasts