Maintaining good oral health is easy with the Philips Sonicare e-Series Standard toothbrush heads. • Up to 2x more plaque removal versus a manual toothbrush • Unique angled neck helps you reach back teeth • Screw-on brush head for original Sonicare handles •Bristles fade when replacement is needed • Dentists recommend replacement every 3 months for optimal results • Suitable for: Elite, Essence, CleanCare, Xtreme and Advance models