Maintaining good oral health is easy with the Philips Sonicare ProResults Standard toothbrush heads. Designed to work with multiple Sonicare models, these snap-on replacement brush heads feature a large surface area and radial-trimmed, contoured bristles to thoroughly clean and massage teeth and gums. The blue reminder bristles fade to let you know when it"s time for replacement. Replace your brush head every three months for best results. Angled Bristles Cover Larger Surface Area The curved surface area created by the brush head"s radial-trimmed bristles help you maintain contact with the surfaces of the teeth and gums as the brush head pivots. The bristles" contoured pattern fits the natural shape of your teeth. Peaks and valleys along the length of the brush head are ergonomically designed to fit between teeth, so you"re less likely to miss places when you brush. This means you can remove more disease-causing plaque for a healthier mouth. Replace Every Three Months You can"t see it, but your brush head wears over time. Blue reminder bristles fade in color to let you know when it"s time to replace the brush head. Dental professionals recommend replacing your brush head every three months. Sonicare technology helps you remove up to two times more plaque compared to a manual toothbrush. Fits Multiple Sonicare Handles The ProResults Compact brush head works with the following Sonicare models: DiamondClean, FlexCare+, FlexCare, HealthyWhite, and EasyClean. The heads easily snap onto handles and come with caps for hygienic storage and travel.