Replacement heads for the FairyWill E11 toothbrush (pink). Experts recommend replacing toothbrush heads at least every 3 months. In this set, you'll find 4 replacement tips that should last you at least a year. Plus, you won't have to wonder when to replace the tip - the blue, fading bristles will remind you. High-quality DuPont nylon bristles clean your teeth precisely. Thanks to their W-shape, they fit perfectly against your teeth and gums, allowing you to reach even hard-to-access areas in your mouth. Additionally, they won't damage your gums or enamel. Technical specifications: Manufacturer FairyWill, Color Pink, Quantity in set 4.