Yashirstu brush heads are compatible with Oral B IO 3/4/5/6/7/8/9/10 series electric toothbrush handles. Powerful Cleaning - Dense bristles and rotating friction provide powerful cleaning, thoroughly cleaning the tooth surface and interdental areas. Suitable for Sensitive Gums - Rounded bristle tips with a polished finish are gentle on teeth and gums, without abrading enamel. Convenient Packaging - Each toothbrush head is individually packaged with a dust cap for easy storage and travel. Toothbrush Head Replacement - Bristle wear will vary depending on individual usage habits; replace as needed. Replace brush heads at least every 3 months for optimal cleaning results.
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