Upgrade your oral hygiene routine with our Replacement Brush Heads for Sonic Toothbrush in medium strength. These brush heads feature soft nylon bristles from **DuPont**, offering a brushing experience that is both gentle and effective. - **Long-lasting Durability:** Bristles have a lifespan that is two times longer than standard brush heads. - **Gentle Care:** Delicate on teeth and gums, providing superior cleaning and care. Ensure your brushing experience is second to none with these premium quality replacement heads. Designed to ensure optimal performance and convenience.