Achieve up to 7x healthier gums in just 2 weeks¹: this brush head's concave bristle layout allows the outer bristles to keep your gum line brushed even while you're focusing on your teeth Remove up to 10x more plaque¹ in hard-to-reach areas with engineered flexibility: the soft-touch rubber head enhances bristle motion for increased coverage and more thorough cleaning Proven Sonicare technology cleans gently yet effectively with up to 62,000 bristle movements; dynamic fluid action supports cleaning by driving fluid deep between teeth and along the gumline Click-on design: Philips Sonicare G3 Premium Gum Care brush heads fit all Philips Sonicare handles⁴ You'll know when it's time to change the brush head thanks to BrushSync replacement reminder (compatible handles) that tracks how often and how hard you brush 70% of the plastic in this brush head is bio-based²; paper-based recyclable packaging³ The set includes: 4x G3 Premium Gum Care brush heads, black