Braun Oral-B Replacement Brush Heads, 4 Count, Interdental Wiper Brush, New, Unopened, Genuine Product [Package has some damage. Please refer to the photos.] ・X-Filaments Patented cross-action bristles effectively capture plaque even in the fine grooves on the tooth surface! ・Replacement Color Signal... Recommended to replace the brush head approximately every 3 months for optimal brushing. [Price is not negotiable.]