Replacement toothbrush heads for OMRON electric toothbrushes - Brand: OMRON - Compatibility: Replacement toothbrush heads for electric toothbrushes I was using these with the OMRON Mediclean HT-B323-SL. Out of the 5 toothbrush heads: One is wide. Another is for cleaning between teeth. The ones in bags are sealed, but the plastic ones have been cut from a used two-head package, so they are not sealed. They are unused, but please refrain from purchasing if you are concerned. Thank you for looking.