I bought these ones because I was afraid my wife would get bleeding while brushing. Good thing? It does help a bit. However, it was terrible quality. I felt like the brushes have been used, and they wear down very quick, hardly two months, leave alone three, and my wife only brush twice a day, sometimes only one. I will have to go with other type, not this one next time. I recommend though, get the new ones from Philips, not alternative brand, just not this type.