Electric toothbrush heads for children 7+ providing gentle but thorough cleaning: rest assured that your child stays comfortable as they develop healthy brushing habits and keep away cavities Designed especially for kids: this brush head features soft bristles for gentle cleaning, a contoured bristle profile to fit your child's teeth, and a soft rubber back for extra in-mouth comfort Superior cleaning: the sonic power enables you to take full advantage of the time your child spends brushing to build healthy habits and perfect their brushing technique Proven Sonicare technology cleans gently yet effectively with up to 62,000 bristle movements; Sonicare Fluid Action supports cleaning by driving fluid deep between teeth and along the gumline Philips aims to reduce the use of fossil fuel-based plastic, that's why 70% of the plastic in these sonic toothbrush replacement heads is bio-based¹; paper-based recyclable packaging² Click-on design to easily fit all Philips Sonicare for Kids handles, not compatible with Philips One for Kids