Silk'n SonicYou Regular, 4 pc, Replacement brush heads. The Silk'n SonicYou Regular 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: cleans teeth even in hard-to-reach places, comfortable and easy handling, cleans teeth very gently, massages gums gently and improves their condition. How to use: Attach the replacement head to the appropriate brush and click into place. Replace the brush head regularly, ideally every 3 months. Perfect for the whole family, the Silk'n SonicYou Refills Family Pack features four regular brush heads with coloured rings so you can distinguish which one is yours. Crafted with soft Dupont bristles, the unique brush heads fade in colour the more you use them, so you know when it's time to replace them.