After making a bad choice last buying products "compatible" other vendor - this time I wanted a real home brushes Oral-B for the quality! I read qq share these brushes were consistent with the toothbrush Oral-B Vitality Sonic and this is not the case at all! I find myself having paid almost as shipping costs with non-compatible brushes with my brush! But as the real Vitality sonic brushes are so hard to find I can change the brush to use these brushes Tri-Zone ... BE CAREFUL WHAT YOU ORDER THE BRUSHES ADAPT WELL ON YOUR BRUSH!