Oral-B Dual Clean Replacement Brush Heads provide twice the cleaning action for superior plaque removal vs a regular toothbrushHead rotates side to side in an oscillating manner, while penetrating hard-to-reach areas2 Minute Timer: Signals after two minutes to help you brush for the recommended brushing timeCompatible with the following replacement toothbrush heads: Cross Action, 3D White, Sensitive Clean, Precision Clean, Floss Action, Deep Sweep, Ortho, Power Tip, and Dual Clean#1 Dentist Used Toothbrush Brand, Worldwide - Oral-B (data on file)