Oral-B Stages Power Frozen replacement brush heads The Oral-B Stages Power replacement brush heads, sold in a pack of two, feature specially designed, smaller, and softer bristles, ideal for gently cleaning childrens teeth and gums. These brush heads are recommended for children aged 3 and up. With a specially raised row of bristles, thorough yet gentle cleaning of cavity-prone chewing surfaces is achieved. The particularly small brush head with extra-soft bristles is gentle on sensitive childrens teeth. The brush heads come in child-friendly, colorful designs based on the popular theme Frozen to make brushing teeth playful and appealing.