Maintaining good oral health is easy with Philips Sonicare Brush Heads. They are designed to work with multiple Sonicare models. The snap-on replacement heads are easy to install. They also feature a large surface area and radial-trimmed contoured bristles. This helps people to thoroughly clean and massage teeth and gums. They remove up to two times more plaque than a manual toothbrush. This enhances the health of both the teeth and gums. The blue reminder bristles on the toothbrush replacement heads fade to let the user know when it is time for replacement. They also have a 2-minute timer that helps ensure users follow the recommended brushing time.