desisned to be very soft & comfortable to use. the small flexible rubber-like brushes adapt to interdental spaces giving a thorough clean which helps to eliminates potential future damage to teeth & gums. effectively cleans plaque & food debris from interdental spaces. perfect for use around implants & metal fillings. effectively massages & strengthens gums to increase blood circulation helping to make them resistant to disease. brushes are fluoride coated to help prevent cavitiesa portable plastic carrying case is enclosed to help to keep the brushes clean & hygienic., floruride coated, flexible & easy to use, perfect for tricky to reach aras.