These replacement brush heads are specifically designed for superior cleaning with Oral-B electric toothbrushes. The Sensitive Clean head features soft, flexible bristles that offer a gentle yet effective clean, ideal for users with sensitive gums or teeth. Maintaining regular replacement ensures optimal plaque removal and gum health, as designed by Oral-B engineers. Swap your old brush head for a new one to refresh your brushing experience and maintain high standards of oral hygiene.