Product Review

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.
It provides up to 100% more plaque removal along the gum line for cleaner teeth and healthier gums.

Replacement Tooth Brush Heads
100% brand new and high quality Pack: 4 pcs in one pack

FITS ALMOST EVERY ORAL B TOOTHBRUSH MODEL: Fits for these Oral B model numbers:
D4510 D12013 D12013W D12523 D17525 D18 D19523 D19545 D20523 D20545 OC18 D8011
D9525 D9511 D20 D25 D30 D32 type4739 3709 （Except Oral B's Sonic Toothbrushes）type 3728 3738 3744 3757
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

More：
400, 450, 500, 550, 800, 850, 900, 950, 1000, 1500, 2000, 3000
3250, 3709, 3711, 3725, 3728, 3731, 3738, 3744, 3745, 3756, 4000, 4712
4713, 4716, 4721, 4725, 4726, 4727, 4728, 4729, 4730, 4731, 4733, 4736
4739, 4740, 4750, 5000, 5500, 6000, 6500, 7000, 7400, 7500, 7550, 7850
7875, 7900, 8000, 8300, 8500, 8500, 8850, 8860, 8875, 8900, 8900, 8950, 9000, 9100, 9400, and 9425

If you still not sure whether these Toothbrush heads fit your Oral B, Please feel free to use Amazon's Q&A.

Better Health, Better Life.