- Replacement heads compatible with a wide range of Philips Sonicare electric toothbrushes, including 3 Series Gum Health, ProtectiveClean, HealthyWhite, HealthyWhite+, EasyClean, PowerUp, and Essence+. - Professional W-shaped bristles that adapt to the shape of teeth and gums, allowing for deep cleaning even in hard-to-reach areas. - Each head includes a protective cover to maintain hygiene and facilitate transport. - Made with round-tipped DuPont bristles, they offer gentle and effective care for sensitive teeth and gums. - Advanced planting technology prevents bristle loss and extends the lifespan of the head. - Blue indicator bristles fade to remind you of the optimal replacement time, recommended every 3 months.