Extra soft, multi-height bristles on the toothbrush effectively fit around their small teeth, while the raised tip helps clean hard to reach back teeth. The kid’s toothbrush also features a well-rounded head that makes it comfortable for their small mouth. The Colgate toothbrush also features fun character handles that make brushing more fun. Cleaning teeth couldn’t have been more fun. Children under 4 years old should not use toothbrushes without adult supervision.