3+. Cleans between teeth to improve gum health. Fluoride coated floss helps prevent cavities. Unique design makes flossing easy for children. Recommended by dental professionals. 1 Fluoride coated floss is engineered to resist shredding and slides easily between teeth. 2 Handle and head size allow maneuverability to promote proper flossing technique. 3 Ergonomic design provides a comfortable grip and better control for smaller hands. Three different shapes and colors makes flossing fun! Official licensed product.