Oral-B iO Gum & Sensitive Replacement Heads Electric Toothbrush Brush Heads Black 6 Count

- Remove 100% more plaque for healthier gums with Oral-B’s most advanced iO technology. - 100% Healthier Gums in 1 week* with 4000+ extra-soft yet effective bristles. - 4000+ soft bristles for effective cleaning, curved bristle pattern for gentle gliding effect, Ultra-thin adaptable bristles even for sensitive teeth & gums. - Oral-B’s signature round brush head with thousands of bristles adapts to your unique tooth shape for maximized cleaning efficacy. - Always know when to change your brush head to go back to 100% cleaning power. Smart Bristles fade to white when their cleaning power fades.