4X Double Clean Brush Heads Fit Braun Oral-B Dual Clean Electric Toothbrush Head
(3757 and Braun Oral-B Oral-B electric toothbrush type 4731 4728 4739 3709 3728 3738. 3) Tightly fasten your brush head onto your toothbrush. 2) Remove your old brush head from your toothbrush. 1) Turn off your toothbrush.