Interdental brush can thoroughly clean the devious space which can't clean, remove tartar and the residues between teeth. Besides, it can massage gums which will have a good effect on the blood circulation, prevent bad breath and have prevention of tooth pattern and periodontal disease patterns. Nylon coated wire keeps your gum safe. Features - Material: Dupont nylon, plastic. - For blue one, brush head diameter: 3 mm/ 0.12 in. For red one, brush head diameter: 2.5 mm/ 0.1 in. Size: 5 * 0.7cm/ 1.97 * 0.28 inch. - Ideal for cleaning between braces, crowns, bridges and implants. - Also great for back teeth and crowded teeth. - Perfect cleaning of interdental spaces. - Necessary complement of dental hygience. Package Included: 1 * Set of 50pcs Dental Orthodontic Oral Care Interdental Brush Toothpick Between Teeth Brush Kit