Sustain your oral health with the Sensitive Clean Toothbrush Head Refills by Oral B. The refill pack contains two premium replacement toothbrush heads compatible with all Oral-B handles except pulsonic and io(sold separately). The heads feature ultrathin bristles that are gentle on gums, combined with regular bristles that are tough on plaque. Its sensitive clean formula removes up to 100% more plaque and reduces gum inflammation by 100% compared to a manual toothbrush. It offers everything you need to keep your sensitive teeth and gums healthy.