Fits E-Series: Bullnas replacement heads are compatible with Philips Sonicare E-Series Elite, Essence, Advance, CleanCare, Xtreme Screw-on electric toothbrush handles Efficient Deep Cleaning: Effectively cleans between teeth and other hard-to-reach areas, removing up to 10X more plaque, making every smile brighter and more confident Premium Quality Brush Head: Medium-hard rounded bristles are gentle on the gums and thoroughly clean the surface of the teeth, delivering a professional-grade clean every time you brush 2 Identifiable Color Rings: Our replacement toothbrush heads come with 2 color rings to easily distinguish between different family members Individually Packaged & Dust Cap: Each brush head is individually vacuum-packed with a dust cover, Clean, hygienic and easy to store Replacement Toothbrush Heads Compatible with Philips Sonicare E-Series，Replacement Heads Fit Sonicare E-Series Essence Xtreme Elite Advance and CleanCare Screw-on Electric Toothbrush, BN728, 8 Pack