Fits Jet toothbrushes, but bristles soften pretty quickly.
I bought these as they also fit "Jet" brand electric toothbrushes. They're pretty pricy, especially comparing it to other basic toothbrush heads you can buy at a department store, but this is the only place I can find them.  The bristles are as described (i.e. soft, medium, hard) but they soften up really quickly. They go soft so fast that I tried a soft bristle head once and removed it after like a month because it felt and looked like it wasn't actually cleaning anything. You can also tell after about 2.5 months that you need to replace the bristles because they're so soft, even though they're supposed to last for the standard 3 months.<br /><br />I'm tired of spending this much money for something this basic. While they do work, I would rather just switch toothbrushes considering the cons of using these heads.
Rating: 4 stars