OK for the price...
Since these Oral B replacement heads (4) were near free (most of the cost was shipping), I gave them 3 stars. The bottom line is that one fell apart almost immediately after turning on. It vibrated apart. 2 others work, though they don't seem to have as much rotating vibration as the original.<br /><br />Would I buy them again? Probably not. I think I will replace the brush units with a newer model that has more reasonably priced replacement heads.
Rating: 3 stars