This electric toothbrush head set is designed for users who need replacement brush heads for compatible Braun Oral B rechargeable toothbrush handles. It helps keep your daily brushing routine supplied with fresh replacement heads without changing the existing handle.Use the electric brush head at home or while travelling whenever the current head shows wear. The Precision Clean style supports routine brushing and is suitable for everyday oral care when matched with a compatible handle.Compared with replacing the complete toothbrush, these replacement heads let you continue using a compatible rechargeable handle. The 12-piece pack provides multiple replacements for planned changes over time.Rinse the head thoroughly after brushing and allow it to air dry. Store it in a clean, dry place between uses. Check the fit before brushing and replace the head when the bristles become worn or the head no longer feels suitable for your routine.