Key Features: ‣ Designed For Individuals With Sensitive Teeth, Featuring Bristles That Flex On Contact To Provide Gentle Cleaning. ‣ Outer Bristles Have Tapered Filaments For A Softer, More Flexible Tip To Protect Against Overbrushing. ‣ Small Brush Head And Long Duoflex Neck Allow Effective Cleaning In Hard-to-reach Areas. ‣ Helps Protect Against Gum Recession And Enamel Wear By Reducing Brushing Pressure