Suitable for Sonicare DiamondClean Smart, DiamondClean, FlexCare Platinum, FlexCare, HealthyWhite, 3 Series & 2 Series sonic toothbrushSuitable for Sonicare DiamondClean Smart, DiamondClean, FlexCare Platinum, FlexCare, HealthyWhite, 3 Series & 2 Series sonic toothbrush