The withco rotate head is for use with the rotation plus rechargeable  toothbrush only, the brush bristle use Dupont tynex bristle to help prevent recession of gums ,it is unique rounding design heip remove plaque and tartar from tooth surface , promote effective interproximal cleaning . The brush head fits withco electronic toothbrush head , meanwhile it fits oral-B rotation electronic toothbrush, the brush head fits oral-B model as following:

D4510  DB4510  D12013  D12013W  D12523  D17525 D16 D18  D19523 D19545 D20523 D20545 OC18    OC19 OC20 D8011  D9525 D9511 D20 D25 D29 D30 D32 D34 3728 3738 3744 3756 4728 4739 3709 3728 3738