I Love Them!
I bought these to use with my charcoal teeth whitening toothpaste so that the white heads on my electric toothbrush wouldn't get all discolored.  These heads are stiffer than my regular toothbrush heads so I try to be more careful using them around my gums.  They really do clean your teeth and work great with any charcoal whitening toothpaste!
Rating: 5 stars