Compatibility: Bullnas "W" replacement brush head is fully compatible with Philips Sonicare SNAP-on system electric toothbrush handles. C-1, C-2, C-3 brush head Replacement. Toothbrush heads for ProtectiveClean6100, 6500, 5300, 5100, 4100, ExpertClean, FlexCare, HealthyWhite, EasyClean, DailyClean Series. Gentle and Effective:The Replacement head is made of high-quality, soft and flexible DuPont bristles, which effectively cover the entire surface of the teeth to easily remove plaque, coffee stains and tobacco stains. The rounded end of the bristles whiten the teeth while gently protecting the gums. Effective Cleaning - Diamond Smile: The W brush head is designed ergonomically to better fit the structure of the teeth and thoroughly clean hard-to-reach areas, improving oral health and providing a consistently excellent brushing experience, making your teeth shine like diamonds Brush Head Replacement Reminder: Each replacement brush head comes with blue indicator bristles. As time goes on, when the color of the blue indicator bristles fades, it reminds you to replace the brush head. Dentists recommend replacing the brush head every three months to maintain optimal cleaning effectiveness Hygienic Cover: You will receive 12 high-quality toothbrush heads with 12 sanitary storage and travel covers for a cleaner and more convenient storage. If you have any questions, please feel free to contact us. customer first! Bullnas W Replacement Brush Heads Compatible with Philips Sonicare SNAP-on system electric toothbrush handles

For 1100
For 2100
For 4100, HX3681/23, HX3681/26
For ProtectiveClean 5100, HX6857/11, HX6850/60
For ProtectiveClean 5300, HX6423/34
For ProtectiveClean 6100, HX6877/21, HX6471/03, HX6871/49, HX6876/21
For ProtectiveClean 6500, HX6462/06, HX6462/08, HX6462/07, HX6462/05
For ExpertClean 7500, HX9690/05, HX9690/06, HX9690/07
For Smart 9300, HX9903/11, HX9903/41, HX9903/01, HX9903/21, HX9903/61, HX9924/61, HX9924/11, HX9924/21, HX9924/01, HX9924/41, HX9990/12, HX9990/11, HX9990/13
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