BRAND NEW PACKS OF 4 (16 heads in total) made with soft flexible US Dupont Tynex bristles. Excellent for sensitive teeth and gums. Replacement Toothbrush Heads, Suitable For Oral-B, Electric Toothbrush Heads Perfect Fit: Our toothbrush head refills are compatible for toothbrushes (including Professional Care, Triumph, Advance Power, Vitality Precision Clean, Sensitive, White + Clean, & Dual Clean Series) except Pulsonic and iO. Compatible for all electric toothbrushes with round head rotation: D4510 D12013 D12013W D12523 D17525 D18 D19523 D19545 D20523 D20545 OC18 D8011 D9525 D9511 D20 D25 D30 D32 type4739 3709 (non-sonic brush head) 3728 3738 3744 3757 and type4731 4728 4739 3709 3728 3738 Type 1000, Type 3000, Type 5000, Type 8000, 8850, 8900, etc.
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