Oral B Pulsonic Sensitive Refills, 4 Ks, Replacement brush heads for Men, The Oral B Pulsonic Sensitive Refills 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: removes plaque cleans teeth even in hard-to-reach places cleans teeth very gently brushes teeth more effectively than a manual toothbrush easy to change How to use: Follow the instructions for use included. Attach the replacement head to the appropriate brush and click into place. Rinse the brush head thoroughly under running water after every use. Replace the brush head regularly, ideally every 3 months.