Enjoy a more captivating smile with up&up SmileSonic Pro Advanced Clean Replacement Brush Heads. The high-density bristle design and the advanced clean tip provide a more effective cleaning experience, removing up to 7 times more plaque than a manual toothbrush (based on in vitro laboratory testing). They are also great for targeting hard-to-reach areas between teeth, removing stuck food particles with ease. The Replace-Me bristles fade with use to remind you when to replace your brush head. We believe making smart choices for the people, places, and pets in your life should be easy and affordable. And, having quality you can trust should be a given. That?s why you can count on our promise ? caring for your everyday in every way. Satisfaction guaranteed ? Love it or your money back.