Brush head doesn't fit all Oral B Braun electric toothbrushes
I was disappointed to find that these replacement heads do not fit my oral B braun electric toothbrush, even though it says right in the description, 'The four replacement brush heads in this pack fit all Braun Oral-B electric toothbrushes.' Now I am not sure what replacement heads to buy because I cannot trust Amazon's description of what tooth brushes they fit.