Product information: 1) Electric Replacement Toothbrush Heads 2) Brush heads have removable color-code rings for identification 3) 16replacement brush heads designed to fit Oral- electric toothbrushes and plaque remover models 4) Long interdental tips clean deep between teeth and gumline 5) Disclaimer: These toothbrush heads are manufactured independently by Buccal. Soft, Rounded bristles in center protect teeth from too firm-brushing Suitable model: Electric toothbrush heads for Oral A Belectric toothbrush with all 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 Oral electric toothbrush Type 4731 4728 4739 3709 3728 3738 Applicable to models 1000 type 3000 type 5000 type 8000 type 8850 8900 and so on. Material: plastic colour: white Package Contents: 16 x for Ora-l B Brush Heads Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.