Unfortunately, I have a few here give right. I been around for nearly 30 years using only Braun shaver and was always very pleased with the spare parts. Not this time, however. While shaving after replacement is much better than before (logic), but not as thoroughly as I expected. Above all, now I get every time redness, which previously was not the case - but on the other hand one can do something. So overall quite ok, but not comparable to the previous excellent quality. Therefore: 3 stars