Effective Clean XIAOHEAD toothbrush replacement heads for AquaSonic are made with bristles from famous American brands, the apex of quality standard recognized in the oral care synthetic filament industry. More dense bristles, standard sized, slim angled neck, and densely-packed are proven to reduce gingivitis up to 8x versus a manual toothbrush. Easily snapped on for convenient replacement. Wide Compatibility Easy Installation XIAOHEAD replacement brush head for AquaSonic are specially designed and perfectly compatible with AquaSonic black series, black series pro, for vibe series, and for Duo series pro electric toothbrush. Individually wrapped traveled - The electric toothbrush replacement heads for AquaSonic are individually sealed and come with a transparent hygienic cap that is ideal for storage and travel. You will get 10 pack of premium toothbrush heads with 10 storage and travel caps.