Oral B Kids 3+ Frozen, 4 Ks, Replacement brush heads For Kids, The Oral B Kids 3+ Frozen 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: brushes teeth more effectively than a manual toothbrush cleans teeth very gently comfortable and easy handling helps prevent gum disease effectively How to use: 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.