Colgate Kids Extra Soft Toothbrush 4 – 6 yearsAdd fun to brushing with the Colgate Kids Extra Soft Toothbrush, 4 – 6 years Toothbrush. This toothbrush for kids is great when learning to brush teeth. The kid toothbrush has extra soft bristles and a small head for an effective, gentle clean and a rounder handle and thumb rest make it easy to use