Oral-B 123 Indicator manual toothrbush with comfort grip and blue indicator bristles that fade halfway so you know when to replace your toothbrush.Ergonomically designed handle for comfort and control_x000D_ Polished end-rounded bristles are gentle on teeth and gums_x000D_ Toothbrush with medium bristles_x000D_ Oral-B, #1 toothbrush brand used by dentists worldwideNot intended for children 3 years and under. Replace brush every 3 months.