Philips Sonicare Premium All-in-One HX9092/10, 2 pc, Replacement brush heads unisex, The Philips Sonicare Premium All-in-One HX9092/10 replacement toothbrush heads help you to get the best results from your oral hygiene. Changing the heads regularly guarantees you are always cleaning your teeth as effectively as with a new brush. Characteristics: easy to change very soft bristles brushes teeth more effectively than a manual toothbrush cleans teeth very gently How to use: Replace the brush head regularly, ideally every 3 months. Rinse the brush head thoroughly under running water after every use.