<b>The Keweilian Oral B compatible replacement electric toothbrush head is inspired by professional dental tools and is a great choice for everyday brushing with a tooth by tooth clean.</b><br> <b>It provides up to 100% more plaque removal along the gum line for cleaner teeth and healthier gums.</b><br> <b>Replacement Tooth Brush Heads</b><br> 100% brand new and high quality Pack: 4 pcs in one pack<br><br> FITS ALMOST EVERY ORAL B TOOTHBRUSH MODEL: Fits for these Oral B model numbers:<br> D4510 D12013 D12013W D12523 D17525 D18 D19523 D19545 D20523 D20545 OC18 D8011<br> D9525 D9511 D20 D25 D30 D32 type4739 3709 （Except Oral B’s Sonic Toothbrushes）type 3728 3738 3744 3757<br> Oral-B type4731 4728 4739 3709 3728 3738,Oral-B 1000，Oral-B 3000，Oral-B 5000，Oral-B 8000，Oral-B 8850，Oral-B 8900<br> <b>More：<br> 400, 450, 500, 550, 800, 850, 900, 950, 1000, 1500, 2000, 3000<br> 3250, 3709, 3711, 3725, 3728, 3731, 3738, 3744, 3745, 3756, 4000, 4712<br> 4713, 4716, 4721, 4725, 4726, 4727, 4728, 4729, 4730, 4731, 4733, 4736<br> 4739, 4740, 4750, 5000, 5500, 6000, 6500, 7000, 7400, 7500, 7550, 7850<br> 7875, 7900, 8000, 8300, 8500, 8500, 8850, 8860, 8875, 8900, 8900, 8950, <br>9000, 9100, 9400, and 9425<br> <b>If you still not sure whether these Toothbrush heads fit your Oral B, Please feel free to use Amazon's Q&A.</b><br><br> <b>Better Health, Better Life. </b><br><br>