Style: SB-17A. For Oral-B D25,D18,D12,D8,D4X,D4,D17,D4510,D12013,D12013W,D12523,D8011,D9525,D9511. Not made by Oral B. 1pcs with a color ring on each brush head, easy to distinguish. Better to replace you brush head each month and get good cleanning effect.
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