Not good
These are very generic the packaging has no mfg contact information and I can not find a company website so there is little to no accountabilty for the safety and efficacy of this product.  After using the first brush head I found it vibrates differently and creates an unpleasant sound. I feel that the bristles to be to soft which means they might not provide as good as a cleaning as the oems. Overall I would avoid these and seek a better brand.
Rating: 1 stars