Experience different Philips Sonicate brush heads with this variety pack, which includes 2 Optimal plaque Control brush heads and 1 premium plaque Control brush head. The optimal plaque Control brush heads gently remove 7x more plaque than a manual toothbrush. The premium plaque Control brush head is onecare's deepest cleaning brush head With flexing sides that contour to your teeth and gums for 4x more surface contact and up to 10x more plaque removal versus a manual toothbrush. Use with a Philips Sonicate brush Sync compatible handle (Diamond Clean Smart or protective Clean) to unlock Smart features: brush Sync mode-pairing triggers your handle to select optimal mode and intensity level for exceptional plaque removal (certain models only) brush Sync replacement technology tracks how often and how hard you brush and will notify you when it is time to replace your brush head. reminder bristles fade to let you know when it's time for replacement. Replace your brush head every 3 months as recommended by the American Dental Association. A fresh brush head every 3 months maximizes the effectiveness of Philips' Unique sonic are technology. Essential oil warning: Toothpaste containing essential oils can damage your brush head. Avoid direct contact with products that contain essential oils or coconut oil. Use may result in bristle tufts dislodging.