This pack of 30 Wisdom Daily Use Fine Interdental Brushes (0.45mm) are designed to clean between the teeth and around bridgework and orthodontic appliances. Use regularly to keep your teeth and gums healthy, reduce the buildup of plaque, protect against gum disease and tooth decay and to keep your breath fresh. Wisdom Daily Use Interdental Brushes have plastic coated wire for use around metal fillings and dental implants. Includes a protective cap for use as a handle extension and also as a hygienic cover between uses or when travelling.